500棋牌

<small id='6h3pi'></small><noframes id='6h3pi'>

  • <tfoot id='6h3pi'></tfoot>

      <legend id='6h3pi'><style id='6h3pi'><dir id='6h3pi'><q id='6h3pi'></q></dir></style></legend>
      <i id='6h3pi'><tr id='6h3pi'><dt id='6h3pi'><q id='6h3pi'><span id='6h3pi'><b id='6h3pi'><form id='6h3pi'><ins id='6h3pi'></ins><ul id='6h3pi'></ul><sub id='6h3pi'></sub></form><legend id='6h3pi'></legend><bdo id='6h3pi'><pre id='6h3pi'><center id='6h3pi'></center></pre></bdo></b><th id='6h3pi'></th></span></q></dt></tr></i><div id='6h3pi'><tfoot id='6h3pi'></tfoot><dl id='6h3pi'><fieldset id='6h3pi'></fieldset></dl></div>

          <bdo id='6h3pi'></bdo><ul id='6h3pi'></ul>

          1. <form id='fbohy'></form>
              <bdo id='fbohy'><sup id='fbohy'><div id='fbohy'><bdo id='fbohy'></bdo></div></sup></bdo>

                  苯乙烯(SM)
                  别名:乙烯基苯;
                  英文名:Styrene;
                  产地:中石化;
                  包装:散水,桶装;

                  用途:
                  主要用于生产苯乙烯系列树脂及丁苯橡胶,也是生产离子交换树脂及医药品的原料之一,此外,苯乙烯还可用于制药、染料、农药以及选矿等行业

                  豪利棋牌一祥的平台---首页_Welcome 快乐牛牛终极版下载---首页_欢迎您 快乐牛牛终极版app下载-Welcome 老友漳州棋牌官方下载 星力手机捕鱼游戏---首页_欢迎您