欧美超大胆裸体XX视频

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          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.

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

          Barium Fluoride

          Molecular formula: BaF2
          Molecualr weight: 175.324
          Properties: White cubic crystal; relative' density: 4.83; melting point: 1354℃; soluble in chlorhydric acid, nitric acid, acetic acid and fluohydric acid and slightly in water.
          Usage: Welding flux, optical glass and infrared transmitting film.
          Content: ≥98%
          Impurities:

          HF

          ≤0.15%

          S

          ≤0.1%

          Pb

          ≤0.01%

          P

          ≤0.01%

          Hg

          ≤0.001%

          Packing: 25kg plastic woven bag
          Caution at transportation: inorganic toxicant;
          UN No.: 1564
          specified number of hazardous goods: 83018
          class of risk: 6.1
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          欧美超大胆裸体XX视频

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