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

          Potassium Fluoroaluminate

          Molecular formula: KALF4
          Molecualr weight: 142.073
          Properties: white or pale gray powder; slightly soluble in water; hydrogen fluoride released in the reaction to water at 730℃ above; dissolved slowly in strong acid to release hydrogen fluoride
          Usage: soldering flux for Aluminium and its alloy; flux in glass and ceramic industries
          Impurities:

          AL

          ≥16%

          SO4

          ≤0.05%

          SiO3

          ≤0.2%

          Fe

          ≤0.01%

          Pb

          ≤0.005%

          H2O

          ≤1.5%

          250mesh

          95% passed

          Melting point: 570°C
          Packing: 25Kg plastic woven bag or fibre drum.
          【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>