plastic pom regrind white or black pom unfilled recycled acetal pellets manufacturers

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China Polyamide 12 Granules Virgin PEEK Pellet Anti-bacterium PEEK Granule — 塑料聚甲醛再研磨白色或黑色聚甲醛未填充回收缩醛颗粒Plastic POM Regrind White Or Black Pom Unfilled Recycled Acetal Pellets