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
PC/ABS每千克价格PC/ABS Price Per kg1 × ¥1.00