<strong id="8c1t5"><button id="8c1t5"></button></strong>

  • <tr id="8c1t5"><bdo id="8c1t5"><pre id="8c1t5"></pre></bdo></tr>

    <meter id="8c1t5"></meter>
  • <source id="8c1t5"><menu id="8c1t5"><noframes id="8c1t5"></noframes></menu></source>

  • <source id="8c1t5"><mark id="8c1t5"></mark></source>

    <dfn id="8c1t5"><source id="8c1t5"></source></dfn>

      <video id="8c1t5"><menu id="8c1t5"><kbd id="8c1t5"></kbd></menu></video>
    1. <tt id="8c1t5"><tbody id="8c1t5"><sup id="8c1t5"></sup></tbody></tt>

      <tt id="8c1t5"><address id="8c1t5"><menuitem id="8c1t5"></menuitem></address></tt>
    2. ??????? ???????

      ??. ??? ???
      I ????? ????? ??????? ????? ?????? ??????? 1 ??? ?????
      2 ????? ??????? ??????
      3 ???? ?????? ????? ??????
      II ?????? ?????????? ??? ??????? 1 ????
      2 ?????? ?????? ? PVC
      III ?????? ?????????? ??????? 1 ????? ?????? ??????? ???????? ????? ??????? ???????
      ??? ???????
      ?????????
      ???????
      Aniline ? MDI ? ?????? ??????
      2 ????????? ????????? ?????????
      ?????? ??????? ???? ????????
      3 ?????????? ????????? ?????? ???????? (PP)
      ????? ?????????? (PO) ? polyols polyels
      4 ????? ????????
      5 ?????????
      6 PTA
      7 ??????? ??? ??? ??? ?????
      8 ???? ?????????
      IV ???? ??????? ???????? 1 ????????? ??????? ???? ???? (PA)
      ?????? ??????? (PC)
      polybutylene terephthalate (PBT)
      (????????????/???????/???????) ???????? (ABS)
      2 ????? ???????
      3 ?????? ??????
      4 ??????????
      V ???? ????? 1 polysilicon
      VI ????? ????? ????? 1 ????? ??? ??????
      2 ????? ??? ????????
      3 ????? ??? ????????? ??????
      4 ????? ??? ????? ???????
      5 ????? ??? ????????? (????? ????? ??????)

      <strong id="8c1t5"><button id="8c1t5"></button></strong>

    3. <tr id="8c1t5"><bdo id="8c1t5"><pre id="8c1t5"></pre></bdo></tr>

      <meter id="8c1t5"></meter>
    4. <source id="8c1t5"><menu id="8c1t5"><noframes id="8c1t5"></noframes></menu></source>

    5. <source id="8c1t5"><mark id="8c1t5"></mark></source>

      <dfn id="8c1t5"><source id="8c1t5"></source></dfn>

        <video id="8c1t5"><menu id="8c1t5"><kbd id="8c1t5"></kbd></menu></video>
      1. <tt id="8c1t5"><tbody id="8c1t5"><sup id="8c1t5"></sup></tbody></tt>

        <tt id="8c1t5"><address id="8c1t5"><menuitem id="8c1t5"></menuitem></address></tt>
      2. luluse