无码国产伦一区二区三区视频丨欧美日韩色另类综合丨久久久亚洲裙底偷窥综合丨亚洲欧洲日本综合aⅴ在线丨亚洲精品国偷拍自产在线观看蜜桃

您的瀏覽器版本太低,將不能正常瀏覽。請升級 Internet Explorer或使用Google Chrome瀏覽器。
如果您在使用雙核瀏覽器,請切換到高速 / 極速 / 神速 核心。
PBT
Product
2020-03-26
Product usage: PBT has such characteristics as heat resistance,weather resistance, chemical resistance, good electrical properties, small water absorptionand good luster, and is mainly used in the manufacture of glass fiber reinforced composites/flame retardant composites, electronic parts, electrical parts, auto parts and other industrial spare parts, PBT fiber, PBT optical fiber jacket, PBT film and PBT color master batch.
Product output: the annual output reaching 60,000 tons.