韧性聚甲醛材料聚甲醛塑料树脂碳纤维增强材料出厂价Toughness Pom Material Pom Plastic Resin Carbon Fiber Reinforced Factory Price
颗粒形状聚甲醛耐磨缩醛共聚物聚甲醛树脂聚甲醛树脂Particles Shapes POM Wear Resistant Acetal Copolymer Polyacetal Resin POM Resin