仪表配件和轴承用耐磨原始再生树脂POM塑料树脂Wear-resistant Virgin Recycled Resin POM Plastic Resin For Instrument Fittings And Bearings
供应商POM聚甲醛树脂颗粒泵壳的原始/回收价格Supplier POM Polyoxymethylene Resin Granules Virgin/Recycled Price For Pump Housing