<nobr id="d9dxz"><strike id="d9dxz"></strike></nobr>

        <dfn id="d9dxz"></dfn>
        <output id="d9dxz"><strike id="d9dxz"></strike></output>

        <big id="d9dxz"><ruby id="d9dxz"><em id="d9dxz"></em></ruby></big>

          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
          自拍亚洲欧美在线成电影_国产亚洲综合aa系列_亚洲 欧美激情 国产区_中文免费不卡Av_97视频在线观看精品