<dfn id="r6h7q"><span id="r6h7q"></span></dfn>

      <sup id="r6h7q"></sup>

      <big id="r6h7q"></big>

          <div id="r6h7q"><ol id="r6h7q"><mark id="r6h7q"></mark></ol></div>

          • 官方微信

          Welcome to the website of Shaanxi Rock New Materials Co. Ltd.!

          Tel:0917-3380777 18691780999

          E-mail:[email protected]

           &nbsNews

          Industry News
          Company News
          Common Questions

            CONTACT

          Current Position:
          Homepage   ?  News

          The concept of palladium metal elements!

          username:admin   createtime:2018-04-19

          Palladium is the fifth cycle Ⅷ clan members of platinum group elements, transition metal palladium is silvery white, soft, good ductility and plasticity, forging, rolling and drawing. Massive metal palladium can absorb a large amount of hydrogen, making the volume swell, brittle and even break to pieces. By 1803 English chemist wu ralston found in platinum ore chemical element, spaceflight, aviation and other high-tech fields and auto manufacturing indispensable key materials.

          Product Recommendation

          more+

          recommended reading

          more+

          新疆时时彩
            <dfn id="r6h7q"><span id="r6h7q"></span></dfn>

              <sup id="r6h7q"></sup>

              <big id="r6h7q"></big>

                  <div id="r6h7q"><ol id="r6h7q"><mark id="r6h7q"></mark></ol></div>

                    <dfn id="r6h7q"><span id="r6h7q"></span></dfn>

                      <sup id="r6h7q"></sup>

                      <big id="r6h7q"></big>

                          <div id="r6h7q"><ol id="r6h7q"><mark id="r6h7q"></mark></ol></div>