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                   Garnet for 
                    Sand Blasting or Grinding of Semi_Conductor, Optical Glass 
                    and Cathode Ray Tube Etc 
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                                    | Natural 
                                      garnet powder is carefully produced based 
                                      on the material of natural almandine by 
                                      modern production technique. With the feature 
                                      of self-sharpening, high polishing efficiency, 
                                      low consuming and well fineness of the polisher, 
                                      the products are fit to variety of electronic 
                                      industry such as fluorescent screen, optical 
                                      lens, glass products and semi-conductor. 
                                      It is also suitable for the processing of 
                                      leather, printing board, stone, plastic 
                                      and galvanization. They are also the ideal 
                                      materials for the processing of sandblast 
                                      polishing, high accuracy emery cloth etc. | 
                                   
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                                    | Kinescope bulb 
                                      series: | 
                                    Kinescope bulb 
                                      series: suitable for the grinding and polishing 
                                      of bulbs of CPT、CDT and backward projection. | 
                                   
                                   
                                    | Optical series: | 
                                    suitable for the grinding 
                                      and polishing of optical glass 0of camera 
                                      lens, glasses and telescope.  | 
                                   
                                   
                                    | Silicon series:  | 
                                    suitable for the grinding 
                                      of semi-conductor silicon and ceramics. | 
                                   
                                   
                                    | Artwork glass 
                                      series:  | 
                                    suitable for the grinding 
                                      and polishing of crystal, modern lamps and 
                                      artwork glass. | 
                                   
                                   
                                    | Polishing series:  | 
                                    suitable for the polishing 
                                      of stainless steel product, boarding, stone, 
                                      leather and bone. | 
                                   
                                   
                                    | Additive series: 
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                                    suitable for dense fillings 
                                      and additives between 0 to 10 Micron. | 
                                   
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                                    |  
                                       Mineral Impurities  | 
                                   
                                   
                                    |  
                                       Granularity  | 
                                     
                                       Size ( um )  | 
                                     
                                       Mineral Impurities Content  | 
                                     
                                       Max. allowed impurity 
                                        size ( um )  | 
                                   
                                   
                                    |  
                                       In  | 
                                       Not more than  | 
                                   
                                    
                                   
                                    |   8#  | 
                                      2360-2800  | 
                                      (Granule Number)%  | 
                                      6%  | 
                                     
                                       —  | 
                                   
                                   
                                    |   10#  | 
                                      2000-2360  | 
                                      6%  | 
                                   
                                   
                                    |   12#  | 
                                      1700-2000  | 
                                      6%  | 
                                   
                                   
                                    |   14#  | 
                                      1400-1700  | 
                                      6%  | 
                                   
                                   
                                    |   16#  | 
                                      1180-1400  | 
                                      6%  | 
                                   
                                   
                                    |   20#  | 
                                      850-1000  | 
                                      6%  | 
                                   
                                   
                                    |   24#  | 
                                      710-850  | 
                                      6%  | 
                                   
                                   
                                    |   30#  | 
                                      600-710  | 
                                      6%  | 
                                   
                                   
                                    |   38#  | 
                                      500-600  | 
                                      6%  | 
                                   
                                   
                                    |   46#  | 
                                      425-500  | 
                                      6%  | 
                                   
                                   
                                    |   46#  | 
                                      355-425  | 
                                      6%  | 
                                   
                                   
                                    |   60#  | 
                                      250-300  | 
                                      6%  | 
                                   
                                   
                                    |   70#  | 
                                      212-250  | 
                                      6%  | 
                                   
                                   
                                    |   80#  | 
                                      180-212  | 
                                      6%  | 
                                   
                                   
                                    |   100#  | 
                                      125-150  | 
                                      6%  | 
                                   
                                   
                                    |   120#  | 
                                      106-125  | 
                                      6%  | 
                                   
                                   
                                    |   150#  | 
                                      90-106  | 
                                      6%  | 
                                   
                                   
                                    |   180#  | 
                                      75-90  | 
                                      6%  | 
                                   
                                   
                                    |   220#  | 
                                      63-75  | 
                                      6%  | 
                                   
                                   
                                    |   240#  | 
                                      60-63  | 
                                      6%  | 
                                   
                                   
                                    |   (W63) 280#  | 
                                      50-60  | 
                                      6%  | 
                                   
                                   
                                    |   (W50) 280#  | 
                                      50-60  | 
                                      6%  | 
                                      85  | 
                                   
                                   
                                    |   (W40) 400#  | 
                                      40-50  | 
                                      (Weight)%  | 
                                      6%  | 
                                      75  | 
                                   
                                   
                                    |   (W28) 450#  | 
                                      28-40  | 
                                      6%  | 
                                      65  | 
                                   
                                   
                                    |   (W28) 500#  | 
                                      20-28  | 
                                      6%  | 
                                      55  | 
                                   
                                   
                                    |   (W20) 600#  
                                        or  700#  | 
                                      14-20  | 
                                      6%  | 
                                      45  | 
                                   
                                   
                                    |   (W14) 1000#  | 
                                      10-14  | 
                                      7%  | 
                                      30  | 
                                   
                                   
                                    |   (W10) 1200#   
                                        or 1300#  | 
                                      7-10  | 
                                      7%  | 
                                      25  | 
                                   
                                   
                                    |   (W7) 1600#  | 
                                      5-7  | 
                                      7%  | 
                                      20  | 
                                   
                                   
                                    |   (W5) 2000#  | 
                                      3.5-5  | 
                                      7%  | 
                                      18  | 
                                   
                                   
                                    |   (W3.5) 3000#  | 
                                      1-3.5  | 
                                      7%  | 
                                      15  | 
                                   
                                   
                                    |   (W2.5) 4000#  | 
                                      0.5-1  | 
                                      7%  | 
                                      12  | 
                                   
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                              | Physical Properties: | 
                             
                             
                              
                                   
                                    |  
                                       Density  | 
                                      3.95g 
                                        / CM3  | 
                                   
                                   
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                                       Hardness  | 
                                      (Mohs) 
                                        7 - 8  | 
                                   
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                              | Chemical Composition: | 
                             
                             
                              
                                   
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                                       Chemical 
                                        Composition  | 
                                      SiO2  | 
                                      Al2O3  | 
                                      Fe2O3  | 
                                      FeO  | 
                                      MnO  | 
                                      MaO  | 
                                      CaO  | 
                                   
                                   
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                                       Weight 
                                        (%)  | 
                                      35-40  | 
                                      20-28  | 
                                      25-27  | 
                                      5-10  | 
                                      1.5-2.5  | 
                                      0.5-2.2  | 
                                      1.5-5  | 
                                   
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                              | Magnetism Composition 
                                : | 
                             
                             
                              
                                   
                                    |   Granularity 
                                        Type  | 
                                      8# 
                                        - 280#  | 
                                      280# 
                                        - 4000#  | 
                                   
                                   
                                    |   Magnetism 
                                        Composition (%)  | 
                                      No 
                                        more then (0.3 %)  | 
                                      No 
                                        more then (0.5%)  | 
                                   
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