2024 Spiral classifier

These spiral classifier price types include vibrating shaker tables and alluvial washing machines, and they can be used alongside more precise separation tools. Choose from shaft tables and hydraulic tables that are equipped with hydraulics for conducting compression tests and come with distinct power capacities.. Literotica revenge stories

Submerged Spiral Classifier Market Enigma on a Global Stage | Phenomenal Growth Outlook to 2030 Sep 8, 2023 ... CLASSIFIER Pemisahan dengan alat classifier disebut proses klaisiskasi Pengertian klaisfikasi : Pemisahan bahan padat menjadi 2 fraksi atau lebih berdasarkan kecepatan gerak padatan dalam fluida. fKlasifikasi dibagi 2 : 1. Sizing pemisahan dengan klasifikasi untuk zat atau bahan yang sama densitasnya tetapi ukurannya berbeda.The 'Submerged Spiral Classifier Market' continues to adapt to shifting consumer demands and corporate needs, thus the forecast is still positive. The market is expected to experience significant ...on a slope, with interrupted rake or spiral blades to move the settled solids to a central discharge cone. Tank diameters vary from 4 to 250 ft. Tank depths at center are 2 to 3 ft for small units and up to 25 ft for larger units. Hydraulic classifiers of the sizer and super-sorter types, Figs. 7 and 8, are narrow, deep, rectangular Product Features. 1.This classifier adopts sealing immersed bearing. 2. Independent hoisting equipment with strong reshipment power. 3. Wearable liner of bolt installed to prolong the service life. 4. Cell body in long and narrow shape can reach a good mixing effect and prolong the suspension time of materials. The spiral classifier is widely applied for the following fields: combine with ball grinder into closed circulation for ore-sand separation in the ore separation plant; classify ore sand and fine sludge in gravity ore separation plant; classify the grain of ore pulp at the metal ore separation process; and remove sludge/water at the ore separation process.EIMCO-K.C.P. Spiral Classifiers are mechanically the devices are powerfully built, and functionally they are versatile and flexible. Today’s worldwide acceptance of EIMCO-K.C.P. Classifiers for washing and dewatering pulps, and in closed-circuit grinding is the result of many years of experience in solving wet classification problems. Market Overview: The spiral classifier market is expected to grow at a CAGR of 7.5% during the forecast period from 2022 to 2030. This growth can be attributed to the increasing demand for efficient and accurate processing of materials. Mokup of classifier, 2 principles, 1600 mm screw diameter. Still in use in several silica sand plant: wash drain and dedusting. spiral classifier 1600 | 3D CAD Model Library | GrabCAD Jul 16, 2023 · Our report on the Spiral Classifier Market provides a comprehensive overview of the current market trends and dynamics. It offers an in-depth analysis of the leading players in the market, along ... Spiral classifier . Diameter of screw :500-1500mm Spiral classifier is widely used to form a closed cycle process to split mineral sand with ball mill in ore dressing plants, grade ore and fine mud in the gravity ore dressing plant, or for the pulp size classification in the metal beneficiation process, as well as desliming and dehydration in washing operations.Moreover, The Global Spiral Classifier Industry research report provides a comprehensive analysis of the sector, focusing on important details like industry size, market share, and major competitors.Rake, spiral, and bowl classifiers use mechanical action to dewater, deslime or separate coarse bulk materials from finer materials or liquids. Drag classifiers consist of a chain-link conveyor or endless belt that is dragged through a solid-liquid mixture. Rake classifiers lift solid-liquid mixtures up onto a plate with a screen or rake.Gravity Spiral Concentrator Working Principle. The gravity spiral circuit is designed to extract and concentrate “coarse gold’ from the recirculating load in the mill grinding circuit and hence prevent a build-up within that circuit and the eventual escape of some of that gold into the C.I.L. tanks and thereon into the final tails. (See fig. 4)Jan 27, 2022 · Spiral classifier is a common classification equipment used in mineral processing plants. It has the characteristics of simple structure, reliable operation, large processing capacity, stable classification area and high classification efficiency. Below we briefly introduce its importance, working principle, application and main classification. Spiral classifier is used to treat alluvial placer, especially for those with high dissociation degree and flat shape of mineral monomer. Spiral classifier and ball mill generally cooperate, mostly used for mineral processing. The classifier has the characteristics of simple structure, reliable operation, convenient operation, high efficiency ... Lab Spiral Classifier. This Lab Spiral classifiers suitable for dewatering, medium drainage and desliming and wet and dry classifying for ore, Non-metallic materials, etc. Spiral classifier is a type of classifying equipment which realizes mechanical classification under the principle that materials settle in the liquid at different speeds due ... These spiral classifier price types include vibrating shaker tables and alluvial washing machines, and they can be used alongside more precise separation tools. Choose from shaft tables and hydraulic tables that are equipped with hydraulics for conducting compression tests and come with distinct power capacities.Oct 1, 2015 · The concept of spiral classifiers cathodic protection presented in this paper may become an alternative to the anti-corrosion protection methods of machinery and equipment used now at the KGHM ... Dec 6, 2017 · Comparing Spiral Classifier with Hydro-cyclone, the prominent advantage of Spiral Classifier is reliable-working, simple-operation, stable-classifier area, more fine overflow particle, big tank ... It is evident that no linear classifier will be able to do a good job classifying spiral data where the boundary between two classes is a curve. A simple two layer network with RELU activation on the hidden layer automatically learns the decision boundaries and achieves a 99% classification accuracy on such a data set.Spiral Screw Classifier for Sand Washing. new. Manufacturer: Gandong; Descriptions The classifier which form closed-circuit work with grinding mill in the factory need the machine which can lift grit, so this kind of classifier called mechanical classifier, actually the classifying...Dec 1, 2020 · This is an example of vanilla Tensorflow playground with no added features and no modifications. The run for Spiral was between 187 to ~300 Epoch, depending. I used Lasso Regularization L1 so I could eliminate coefficients. I decreased the batch size by 1 to keep the output from over fitting. Spiral classifier is a mechanical classification machine based on the principle that the specific gravity of solid particles is different in the speed of precipitation in liquid. During the beneficiation process, the ore needs to be ground to a certain fineness so that the fine-grained useful minerals and gangue can be fully dissociated and ...USA, New Jersey- The Global Spiral Classifier Market is set to embark on an extraordinary journey of growth and transformation from 2023 to 2030.This pivotal period will witness a convergence of ...Spiral classifiers suitable for dewatering, de-medium, desliming and wet and dry classifying in mine.This machine is mainly used in the production flow of me... Jun 18, 2023 · Spiral Classifier Market Emerging Trends and Forecast 2023-2030 Published: June 18, 2023 at 8:56 p.m. ET spiral classifier consists of a sloping elongated . round-bottom tank and a sand-raking spiral [46]. The raw materials are fed to the central . section of the pool and flow to the weir while .Oct 20, 2017 · Mokup of classifier, 2 principles, 1600 mm screw diameter. Still in use in several silica sand plant: wash drain and dedusting. 10.3.2 Bahan. Bahan yang digunakan dalam percobaan Spiral Classifier yaitu : 1. Mineral Kasiterit (SnO2) dengan ukuran – 40 + 70 # yakni sebanya 1 kg. 2. Zeolit yakni hasil kominusi dengan ukuran – 8 + 12 #, sebanyak 3 kg. Sumber : Data Hasil Praktikum PBG, 2017. Foto 10.11 Zeolit.USA, New Jersey- The Global Spiral Classifier Market is set to embark on an extraordinary journey of growth and transformation from 2023 to 2030.This pivotal period will witness a convergence of ...on a slope, with interrupted rake or spiral blades to move the settled solids to a central discharge cone. Tank diameters vary from 4 to 250 ft. Tank depths at center are 2 to 3 ft for small units and up to 25 ft for larger units. Hydraulic classifiers of the sizer and super-sorter types, Figs. 7 and 8, are narrow, deep, rectangularSpiral Classifier. In mineral processing, the Akins AKA spiral or screw Classifier has been successfully used for so many years that most mill operators are familiar with its principle and operation. This classifier embodies the simplest design, smallest number of wearing parts, and an absence of surge in the overflow.Spiral washer is a type of sand washing machine, while spiral classifier is a mineral processing equipment. There are many similarities between spiral washers and spiral classifiers in appearance, many users can not distinguish them. In this article, will introduce 6 differences between spiral washers and spiral classifiers. 1. Different ...May 26, 2016 · Spiral Classifier. In mineral processing, the Akins AKA spiral or screw Classifier has been successfully used for so many years that most mill operators are familiar with its principle and operation. This classifier embodies the simplest design, smallest number of wearing parts, and an absence of surge in the overflow. Nesans Spiral Classifier consists of an open trough with a chute provided for the input feed material. Before being fed into the spiral classifier, the dust from the screen is mixed with water and it is carried to the input chute through a slurry pump. The inlet flow is evenly distributed across the surface area of the spirals.Moreover, The Global Spiral Classifier Industry research report provides a comprehensive analysis of the sector, focusing on important details like industry size, market share, and major competitors.Walker mining produce Submerged and hig weir double spiral classifier,Submerged and High-weir double spirals classifier. Product Introduction Spiral classifier is a common beneficiation equipment. It’s widely used in concentrators and ball mills to form a closed-circuit cycle and separate ore sand, or in gravity concentrators to classify ore ...Spiral Classifier 【Capacity】: 10-900t/24h 【Moto power】: 3-30Kw 【Spiral diameter】: 300mm-3000mm 【Processible Materials】: Natural sand, artificial sand, machine-made sand. 【Application】: Clean mud and water or working with ball mill to control material size. Chat Online on WhatsApp Email Us Make A Quote Advantages Product StructureApr 28, 2007 · spiral classifier consists of a sloping elongated . round-bottom tank and a sand-raking spiral [46]. The raw materials are fed to the central . section of the pool and flow to the weir while . 4. Hydraulic spiral lifting device Spiral dewaterer model - SD The Metso Outotec spiral dewaterer model SD is a robust evolution of the spiral classifier for reliable operations in mill scale handling. The spiral dewaterer with special designed spiral and enlarged pool area is able to handle large flows of effluents, offering aA study on physical beneficiation of platinum group metals (PGMs) flotation tailings was carried out by means of spiral classifiers and a gravity separator (Knelson Concentrator – KC-CVD 6 unit).Classifier. The Spiral Classifier used for the study was manufactured by Nick and Paul. 2.2 Designing of Test Works Prior to test work design, visit to the oxide plant at Ghana Manganese Company (GMC) were made with the aim of getting acclimatize with the current operations at the plant. The Spiral classifier was operated in batch mode.Spiral classifier is one of beneficiation equipment, based on user requirements, it can be divided into single and double spiral classifier. Depend on specific gravity of solid particles, so different sedimentation velocity in a liquid principle, spiral classifier is a mechanical grading equipment. Description FC and FG Series Spiral Classifier is mainly used in pre-classification and examination classification of grinding circuit in concentration plant and aggregate plant as well as desliming and dehydration in the process of sand washing. It can be classified into single spiral and double spiral according to the spiral quantity; and high weir type and sinking type according to the ...Submerged Spiral Classifier Market Enigma on a Global Stage | Phenomenal Growth Outlook to 2030 Sep 8, 2023 ...Spiral classifier . Diameter of screw :500-1500mm Spiral classifier is widely used to form a closed cycle process to split mineral sand with ball mill in ore dressing plants, grade ore and fine mud in the gravity ore dressing plant, or for the pulp size classification in the metal beneficiation process, as well as desliming and dehydration in washing operations.Product Features. 1.This classifier adopts sealing immersed bearing. 2. Independent hoisting equipment with strong reshipment power. 3. Wearable liner of bolt installed to prolong the service life. 4. Cell body in long and narrow shape can reach a good mixing effect and prolong the suspension time of materials. Spiral classifier is a common classification equipment used in mineral processing plants. It has the characteristics of simple structure, reliable operation, large processing capacity, stable classification area and high classification efficiency. Below we briefly introduce its importance, working principle, application and main classification.Oct 20, 2017 · Mokup of classifier, 2 principles, 1600 mm screw diameter. Still in use in several silica sand plant: wash drain and dedusting. 10.3.2 Bahan. Bahan yang digunakan dalam percobaan Spiral Classifier yaitu : 1. Mineral Kasiterit (SnO2) dengan ukuran – 40 + 70 # yakni sebanya 1 kg. 2. Zeolit yakni hasil kominusi dengan ukuran – 8 + 12 #, sebanyak 3 kg. Sumber : Data Hasil Praktikum PBG, 2017. Foto 10.11 Zeolit.Shaker Tables. MBMM produces high-performance shaker tables for gravity separation based on different material densities. They are designed for maximum performance by combining the best of many proven designs, refined after many hundreds of hours of R&D. The most notable feature is from an old 1909 Deister patent: a ramp and plateau system ...EIMCO-K.C.P. Spiral Classifiers are mechanically the devices are powerfully built, and functionally they are versatile and flexible. Today’s worldwide acceptance of EIMCO-K.C.P. Classifiers for washing and dewatering pulps, and in closed-circuit grinding is the result of many years of experience in solving wet classification problems. Aug 24, 2023 · Compared with these two classifiers, the hydrocyclone has a better classification effect when processing finer-grained materials (the separation particle size range is generally 0.3-0.01mm). 2. Floor area. Obviously, the footprint of the hydrocyclone is significantly smaller than that of the spiral classifier. A study on physical beneficiation of platinum group metals (PGMs) flotation tailings was carried out by means of spiral classifiers and a gravity separator (Knelson Concentrator – KC-CVD 6 unit).Spiral classifier is a mechanical classification machine based on the principle that the specific gravity of solid particles is different in the speed of precipitation in liquid. During the beneficiation process, the ore needs to be ground to a certain fineness so that the fine-grained useful minerals and gangue can be fully dissociated and ...Apr 28, 2007 · spiral classifier consists of a sloping elongated . round-bottom tank and a sand-raking spiral [46]. The raw materials are fed to the central . section of the pool and flow to the weir while . Mar 26, 2016 · Gravity Spiral Concentrator Working Principle. The gravity spiral circuit is designed to extract and concentrate “coarse gold’ from the recirculating load in the mill grinding circuit and hence prevent a build-up within that circuit and the eventual escape of some of that gold into the C.I.L. tanks and thereon into the final tails. (See fig. 4) XBM Mining is a leading global supplier of equipment and tools, service and technical solutions for the mining industry,especially specialized in ore benefic...The spiral classifier is based on the principle that the solid particles are different in size and specific gravity, so the settling speed in the liquid is different. Fine ore particles float in the water and overflow, and coarse ore particles sink to the bottom of the tank. This spiral classifier/dewatering screw is a multi-purpose machine. As a classifier, it separates out the smaller waste particles from the ore processor tailings. The larger particles can then be returned to the grinding circuit for finer grinding to liberate more values. Many locations don’t have a ready source of water, so when used as a ... Nesans Spiral Classifier consists of an open trough with a chute provided for the input feed material. Before being fed into the spiral classifier, the dust from the screen is mixed with water and it is carried to the input chute through a slurry pump. The inlet flow is evenly distributed across the surface area of the spirals.EIMCO-K.C.P. Spiral Classifiers are mechanically the devices are powerfully built, and functionally they are versatile and flexible. Today’s worldwide acceptance of EIMCO-K.C.P. Classifiers for washing and dewatering pulps, and in closed-circuit grinding is the result of many years of experience in solving wet classification problems.The Submerged Spiral Classifier Market is undergoing a remarkable transformation, fueled by cutting-edge technologies and a deep commitment to meeting user needs. Companies within the industry are ...Nesans Spiral Classifier consists of an open trough with a chute provided for the input feed material. Before being fed into the spiral classifier, the dust from the screen is mixed with water and it is carried to the input chute through a slurry pump. The inlet flow is evenly distributed across the surface area of the spirals. Mar 25, 2019 · The submerged spiral classifier is suitable for fine particle classification, and the classificaiton overflow particle size is generally less than 0.15 mm. Compared with these two kinds of spiral ... Spiral classifier. Spiral classifier is one of the classifying equipment in mineral processing. It is suitable for classifying materials in the mineral processing plant as well as the desliming and dehydrating in the mineral washing operating process and widely applied to separate the particles into a number of products graded according to size in the complete closed loop together with ball ...EIMCO-K.C.P. Offers Bridge mounted (B) type, Column Mounted (C) Type and Traction driven (T) type Classifiers mechanism for various applications. These operate on the common principle of moving settled solids to the center of principle of moving settled solids to the centre of the tank for removal, and differ principally in the method used to ...Spiral Classifier. In mineral processing, the Akins AKA spiral or screw Classifier has been successfully used for so many years that most mill operators are familiar with its principle and operation. This classifier embodies the simplest design, smallest number of wearing parts, and an absence of surge in the overflow.Spiral Classifiers are available in sizes up to 120″ diameter, three tank styles, single, double and triple pitch spirals, three degrees of spiral submergence —flexibility to provide a unit built for your job. Write for detailed recommendation on the correct size and type of Spiral Classifier to do your job economically and profitably. Jan 27, 2022 · Spiral classifier is a common classification equipment used in mineral processing plants. It has the characteristics of simple structure, reliable operation, large processing capacity, stable classification area and high classification efficiency. Below we briefly introduce its importance, working principle, application and main classification. Spiral Dewaterer model - SD Metso spiral dewaterer model SD is a robust evolution of the spiral classifier for reliable operations in mill scale handling. The spiral dewaterer with special designed spiral and enlarged pool area is able to handle large flows of effluents, offering a well dewatered mill scale product and a clear overflow ... Submerged Spiral Classifier Market Enigma on a Global Stage | Phenomenal Growth Outlook to 2030 Sep 8, 2023 ...The Submerged Spiral Classifier Market is undergoing a remarkable transformation, fueled by cutting-edge technologies and a deep commitment to meeting user needs. Companies within the industry are ...The 'Submerged Spiral Classifier Market' continues to adapt to shifting consumer demands and corporate needs, thus the forecast is still positive. The market is expected to experience significant ...Spiral Classifier 【Capacity】: 10-900t/24h 【Moto power】: 3-30Kw 【Spiral diameter】: 300mm-3000mm 【Processible Materials】: Natural sand, artificial sand, machine-made sand. 【Application】: Clean mud and water or working with ball mill to control material size. Chat Online on WhatsApp Email Us Make A Quote Advantages Product StructureMarket Overview: The spiral classifier market is expected to grow at a CAGR of 7.5% during the forecast period from 2022 to 2030. This growth can be attributed to the increasing demand for efficient and accurate processing of materials. Spiral classifier is a mechanical classification machine based on the principle that the specific gravity of solid particles is different in the speed of precipitation in liquid. During the beneficiation process, the ore needs to be ground to a certain fineness so that the fine-grained useful minerals and gangue can be fully dissociated and ... spiral classifier consists of a sloping elongated . round-bottom tank and a sand-raking spiral [46]. The raw materials are fed to the central . section of the pool and flow to the weir while .The spiral classifier is widely applied for the following fields: combine with ball grinder into closed circulation for ore-sand separation in the ore separation plant; classify ore sand and fine sludge in gravity ore separation plant; classify the grain of ore pulp at the metal ore separation process; and remove sludge/water at the ore separation process. Apr 28, 2007 · spiral classifier consists of a sloping elongated . round-bottom tank and a sand-raking spiral [46]. The raw materials are fed to the central . section of the pool and flow to the weir while . The spiral speed and feed tonnage correlated negatively to the Mn grade with washing time correlating positively. Operating the spiral classifier at a feed rate, spiral speed and washing time of 6 t, 25 rev/min, and 30 min, respectively, yielded Mn grade of 53%. Triveni Spiral Classifiers utilize an increased for maximum torque and quiet, trouble free. lead or helix angle to form the continuous high pitch performance. Spiral for greater raking capacity. The upper main bearing is over sized for normal. Classifier service. Also this bearing and gear pivot is on.SPIRAL CLASSIFIER / SCREW CLASSIFIER. DOVE Spiral Classifier, also referred to as Screw Classifier, or Spiral Mineral Separator, is highly efficient classifier designed for closed circuit wet classification and separation of the Slimes (Fines) from a sandy sized (Coarse) material. It is well suited for classification, where a two product size ...Triveni Spiral Classifiers utilize an increased for maximum torque and quiet, trouble free. lead or helix angle to form the continuous high pitch performance. Spiral for greater raking capacity. The upper main bearing is over sized for normal. Classifier service. Also this bearing and gear pivot is on.

Rake, spiral, and bowl classifiers use mechanical action to dewater, deslime or separate coarse bulk materials from finer materials or liquids. Drag classifiers consist of a chain-link conveyor or endless belt that is dragged through a solid-liquid mixture. Rake classifiers lift solid-liquid mixtures up onto a plate with a screen or rake. . She a freak pornandved2ahukewi9lr72q4caaxueddabhd88cng4chawegqiaxabandusgaovvaw3moz0 pgenfzad4gzqv fv

The spiral classifier such as the Akins classifier consists of a semi-cylindrical trough (a trough that is semicircular in cross-section) inclined to the horizontal. The trough is provided with a slow-rotating spiral conveyor and a liquid overflow at the lower end.Spiral classifier is a common classification equipment used in mineral processing plants. It has the characteristics of simple structure, reliable operation, large processing capacity, stable classification area and high classification efficiency. Below we briefly introduce its importance, working principle, application and main classification.The spiral speed and feed tonnage correlated negatively to the Mn grade with washing time correlating positively. Operating the spiral classifier at a feed rate, spiral speed and washing time of 6 t, 25 rev/min, and 30 min, respectively, yielded Mn grade of 53%.May 15, 2016 · Spiral classifiers. A typical spiral classifier is shown in Fig. 1. The geometry of a spiral is characterized by the length or number of turns, the diameter, the pitch and the shape of the trough ( Burt, 1984). The spiral feed is a mixture of water and ground particles that is gravity fed at the top of the spiral. Particles below a certain size and density are carried away with the water-flow, whereas the coarser and heavier particles settle. Basically the different wet classifiers are gravity settling tank, cone classifier, double cone classifier, hydrocyclone classifier, spiral classifier, and rake classifier. Gravity settling tank is the simplest type ...It is evident that no linear classifier will be able to do a good job classifying spiral data where the boundary between two classes is a curve. A simple two layer network with RELU activation on the hidden layer automatically learns the decision boundaries and achieves a 99% classification accuracy on such a data set.This spiral classifier/dewatering screw is a multi-purpose machine. As a classifier, it separates out the smaller waste particles from the ore processor tailings. The larger particles can then be returned to the grinding circuit for finer grinding to liberate more values. Many locations don’t have a ready source of water, so when used as a ...The ball mill and spiral classifier work together, to be a close circuit grinding system, to control the materials to be grinded as you want.More details ple...These spiral classifier price types include vibrating shaker tables and alluvial washing machines, and they can be used alongside more precise separation tools. Choose from shaft tables and hydraulic tables that are equipped with hydraulics for conducting compression tests and come with distinct power capacities.CLASSIFIER Pemisahan dengan alat classifier disebut proses klaisiskasi Pengertian klaisfikasi : Pemisahan bahan padat menjadi 2 fraksi atau lebih berdasarkan kecepatan gerak padatan dalam fluida. fKlasifikasi dibagi 2 : 1. Sizing pemisahan dengan klasifikasi untuk zat atau bahan yang sama densitasnya tetapi ukurannya berbeda.Aug 7, 2023 · The Global Spiral Classifier Market can be segmented based on various factors to gain a comprehensive understanding of its dynamics and opportunities. The segmentation allows for a more targeted ... EIMCO-K.C.P. Spiral Classifiers are mechanically the devices are powerfully built, and functionally they are versatile and flexible. Today’s worldwide acceptance of EIMCO-K.C.P. Classifiers for washing and dewatering pulps, and in closed-circuit grinding is the result of many years of experience in solving wet classification problems. Classifier. The Spiral Classifier used for the study was manufactured by Nick and Paul. 2.2 Designing of Test Works Prior to test work design, visit to the oxide plant at Ghana Manganese Company (GMC) were made with the aim of getting acclimatize with the current operations at the plant. The Spiral classifier was operated in batch mode. Oct 22, 2019 · Misconception 4: Fine Material Screws are recommended for cutting at a coarse sand size. Fine Material Screw Washers generally are not recommended for removing fine solids larger than 150 micron or 100 mesh. When a separation ranging from 150 to 800 micron (or 100 to 20 mesh) is required, other types of classifiers, like Hydrosizers™ (or ... Spiral classifier . Diameter of screw :500-1500mm Spiral classifier is widely used to form a closed cycle process to split mineral sand with ball mill in ore dressing plants, grade ore and fine mud in the gravity ore dressing plant, or for the pulp size classification in the metal beneficiation process, as well as desliming and dehydration in washing operations.China Spiral Classifier manufacturers - Select 2023 high quality Spiral Classifier products in best price from certified Chinese Mining Equipment, Mining Machine suppliers, wholesalers and factory on Made-in-China.com .

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