国产自爱拍偷在拍在线播放,日韩精品午夜一区二区三区免费在线,日本天堂免费a,亚洲五月天婷婷中文网站

    1. The solar industry

      Polysilicon ingot stripping silicon nitride coating solution

      The buyer: Tianjin * * New Energy Co. Ltd. etc.

      Recommended products:

      A1 Grade(4N)High purity silicon nitride powder.

      JSH A1 Grade(4N)Main indicators of silicon nitride powder
      ProjectUnitRangeTesting standards or methods
      N%> 39.6GB/T 16555-2008 / IGA
      O%< 0.8ASTMC1494-2001 / IGA
      C%< 0.2Leco method / IGA
      Feppm wt< 20ICP Method / GDMS
      Alppm wt< 10ICP Method / GDMS
      Cappm wt< 10ICP Method / GDMS
      Pppm wt< 3ICP Method / GDMS
      Sppm wt< 3ICP Method / GDMS
      Bppm wt< 3ICP Method / GDMS
      Si-free%< 0.05GB/T 16555-2008
      Si3N4(aphar)%> 90XRD YB/T 5320-2006
      D50um1.5±0.2GB/T 19077.1-2008