<noframes id="jh3zf"><big id="jh3zf"></big>

    <ol id="jh3zf"><span id="jh3zf"></span></ol>

      <sub id="jh3zf"></sub>

          <font id="jh3zf"><video id="jh3zf"><dfn id="jh3zf"></dfn></video></font>

            <i id="jh3zf"></i>
            <dfn id="jh3zf"></dfn>

              <dfn id="jh3zf"><noframes id="jh3zf"><dfn id="jh3zf"></dfn>
              <ol id="jh3zf"><noframes id="jh3zf">

              <form id="jh3zf"></form>
              <dfn id="jh3zf"><noframes id="jh3zf"><menuitem id="jh3zf"></menuitem>
              Get Adobe Flash player
              About Bosin
              Quality System
              includes ISO9001:2000, Europe PED 97/23/EC, SO14001-2004, OHSAS18001-2001, API5CT ...


              Production Capacity
              With the outside diameter ranged from 2 3/8" to 13 3/8",and the steel grades of H40, J55/ k55, N80, L80, P110...


              The company have two Φ90、Φ50 hot piercing machine、three end forming machine,nineteen cold ...