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 Fluoroborate

          Molecular formula: KBF4
          Molecualr weight: 125.90
          Properties: Whitegranule crystal, slightly dissolved in water, hot alcohol and ethanol, not dissolved in alkali solutions; decomposed by strong acidto be Boron Trifluoride; codissolved with carbonate of alkali metals to be fluoride and borate;melting point 530℃
          Specifications: (refer to the standard of business Q/HG 12-039-85, Shanghai)
          Content: ≥98%
          Impurities:

          Chloride(Cl)

          ≤0.1%

          Sulfate(SO4)

          ≤0.01%

          Iron(Fe)

          ≤0.03%

          Moisture

          ≤0.05%

          Lead(Pb)

          ≤0.01%

          Calcium(Ca)

          ≤0.05%

          Magnesium(Mg)

          ≤0.05%

          Silica(as SiO2)

          ≤0.3%

          Granularity+60mesh: 5%max;+200mesh;50%min.
          300mesh: 15%max
          Usage: analytical reagent, fusing agent, in manufacture of Boron Trifluoride, mould material for casting AI and Mg, in electrochemical and Chemical experiments.
          Package: 25kg composite bag or P.E bag
          Gaution at transportation: poisonous, must be kept from moisture.
          【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>