Ntau hom yas siv rau hauv kev ua liaj ua teb, suav nrog, polyolefins (polyethylenes (PE), Polypropylene (PP), Ethylene-Vinyl Accetate Copolymer (EVA)) thiab tsawg dua, Poly-vinyl chloride (PVC), Polycarbonate (PC) thiab Poly-methyl-methacrylate (PMMA).Cov yeeb yaj kiab ua liaj ua teb tseem ceeb yog: geome...
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