Waya uye mapurasitiki etambo (anonzi tambo zvinhu) marudzi epolyvinyl chloride, polyolefins, fluoroplastics, uye mamwe mapurasitiki (polystyrene, polyester amine, polyamide, polyimide, polyester, nezvimwewo). Pakati pavo, polyvinyl chloride, uye polyolefin yakaverengera ruzhinji rwe ...
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