欧美超大胆裸体XX视频

<ruby id="15my5"><option id="15my5"><div id="15my5"></div></option></ruby>
    1. <span id="15my5"><sup id="15my5"><nav id="15my5"></nav></sup></span>

    2. <span id="15my5"><output id="15my5"><b id="15my5"></b></output></span>

      
      
    3. <optgroup id="15my5"></optgroup>

        <strong id="15my5"></strong>

          Welcome to the official website of Changshu Xinhua Chemical Co., Ltd.!

          Changshu Xinhua chemical co., ltd.

          常熟市新華化工有限公司

          Changshu Xinhua chemical co., ltd.

          WeChat Mobile version

          PRODUCTS

          · Have a scientific enterprise management system · Is a high-tech enterprise in Jiangsu Province and Changshu Polymer New Material Industry Base

          Ammonium Bifluoride

          Molecular formula: NH4HF2
          Molecualr weight: 57.04
          Properties: white rhombus or flaky crystal
          Content: ≥97%
          Impurities:

          Chloride ( Cl )

          ≤0.1%

          Sulfate ( SO4 )

          ≤0.05%

          Silicate(SiO3)

          ≤0.6%

          Lead(Pb)

          ≤0.005%

          Iron(Fe)

          ≤0.01%

          Ignited Residue

          ≤0.1%

          Usag: Used as analytical reagent, bacterium in hibitor, engraving pottery andglass, and treating surface of Si-Iron.
          Package: 25kg plastic woven bag
          Gaution at transportation: avoid moist, inorganic toxic matter. UN No: 1727 Hazardous No.:83019
          Class of risk: 8 Package: grade Ⅱ
          【BACK】

          E-mail Login

          I.D.: @csxhchem.com P.W.:

          GO
          TOP

          欧美超大胆裸体XX视频

          <ruby id="15my5"><option id="15my5"><div id="15my5"></div></option></ruby>
          1. <span id="15my5"><sup id="15my5"><nav id="15my5"></nav></sup></span>

          2. <span id="15my5"><output id="15my5"><b id="15my5"></b></output></span>

            
            
          3. <optgroup id="15my5"></optgroup>

              <strong id="15my5"></strong>