国产精品亚洲色婷婷99久久精品,JAPANESE少妇高潮喷水,久久99精品久久久久久久久久

<td id="ckwog"></td>
  • <td id="ckwog"><li id="ckwog"></li></td><li id="ckwog"></li>
  • <td id="ckwog"></td><td id="ckwog"></td>
  • <td id="ckwog"></td>
  • <td id="ckwog"></td>
  • <td id="ckwog"><button id="ckwog"></button></td><td id="ckwog"><button id="ckwog"></button></td><li id="ckwog"><li id="ckwog"></li></li>
  • <td id="ckwog"><button id="ckwog"></button></td>
  • <td id="ckwog"><button id="ckwog"></button></td> <small id="ckwog"></small>
  • <td id="ckwog"></td><td id="ckwog"></td>
  • <small id="ckwog"></small>
    Polycarbonate Solid Sheets
    Polycarbonate Hollow Sheets
    Polycarbonate Corrugate Sheet
    Polycarbonate Film
    PP Sheets
    Poly Styrene Sheets
    Skylights
    Application


    Polycarbonate PROPERTIES
    【Font size: 16 14 12
    2011-02-15 14:04:53
    Have read 3275

     

    Polycarbonates are strong, stiff, hard, tough, transparent engineering thermoplastics that can maintain rigidity up to 140oC and toughness down to -20°C or special grades even lower. The material is amorphous (thereby displaying excellent mechanical properties and high dimensional stability), is thermally resistant up to 135oC and rated as slow burning. Special flame retardant grades exist which pass several severe flammability tests.

    Constraints to the use of PC include limited chemical and scratch resistance and it's tendency to yellow upon long term exposure to UV light. However these constraints can be readily overcome by adding the right additives to the compound or processing through a co-extrusion process.

      Address: 100# Xiang Cheng Rd Xiang cheng district Suzhou China
    Tel (Fax) :0512-65862006    E-mail: zhuonier@sheet-china.com    蘇ICP備10054351號    技術支持:易動力網絡
    国产精品亚洲色婷婷99久久精品,JAPANESE少妇高潮喷水,久久99精品久久久久久久久久