欧美贵妇videos办公室 - 国产免费一区不卡在线 - 亚国产亚洲亚洲精品视频 - 伊人亚洲综合中文字幕

Fusible polytetrafluoroethylene (PFA) series

It has excellent heat resistance, cold resistance, chemical stability, mechanical property, insulation, self-lubricating property, folding resistance, cracking resistance and so on. A total of 22 products of injection molding, extrusion, molding three series of nine colors.