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        	Electronic and high precise machine manufacturing industry        
      
                
      The key part of machine parts coating and solution
      The buyer: Germany * * * ceramic limited liability company
      Recommended products:
      B2 Grade (2N) High alpha phase silicon nitride.
              
      JSH B2 Grade（2N）The contents of major elements in silicon nitride powder
      ProjectUnitRange
      N%＞ 38.5
      O%＜ 1.5
      C%＜ 0.2
      Fe%＜ 0.3
      Al%＜ 0.2
      Ca%＜ 0.2
      Pppm wt＜ 200
      Sppm wt＜ 200
      Clppm wt＜ 200
      Si-free%＜ 0.2
      Si3N4(aphar)%＞ 95
      D50um0.5±0.05
          
        
   

      





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