<strike id="bznhp"><ins id="bznhp"></ins></strike>
<big id="bznhp"></big>
<noframes id="bznhp"><big id="bznhp"><progress id="bznhp"></progress></big><big id="bznhp"><progress id="bznhp"></progress></big>

    <progress id="bznhp"></progress>

      <progress id="bznhp"><meter id="bznhp"></meter></progress>

      <big id="bznhp"></big>

          Products
          thumb
          thumb
          thumb
          thumb
          Ascorbic Acid/Vitamin C

          Ascorbic acid is a white or slightly yellow crystals or powder,easily soluble in water,a little soluble in alcohol and uneasily soluble in Ether and chloroform and other organic solvent.In solid state it is stable in air.Its water solution is easily mutated when it meets with air.

          13283888407 13373951170
          亚洲成熟妇女视频免费