回收的聚甲醛MFI 8-10颗粒/聚甲醛颗粒/聚甲醛颗粒Recycled POM (Polyoxymethylene) MFI 8-10 Granules/POM Pellet/POM Granules
回收聚甲醛材料缩醛共聚物树脂25%玻璃纤维GF POM塑料颗粒/颗粒价格Recycled Polyoxymethylene Material Acetal Copolymer Resin 25% Glass Fiber GF POM Plastics Granules/ Pellets Price