Ha ho bapisoa le lisebelisoa tsa PET le PP, PP e tla ba e phahametseng ts'ebetso.1. Phapang ho tloha tlhaloso ea PET (Polyethylene terephthalate) lebitso la saense ke polyethylene terephthalate, e tsejoang ka hore ke polyester resin, ke lisebelisoa tsa resin.PP (polypropylene) s...
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