Enwere ike kewaa rọba n'ụzọ sara mbara gaa n'ụdị asaa bụ isi, ndị e ji kemịkal kemịkalụ ha, ihe onwunwe ha, na ojiji ha na-eji: Polyethylene (PE): Polyethylene bụ polymer thermoplastic na-agbanwe agbanwe ma na-ejikarị eme ihe.Enwere ọtụtụ subtypes nke polyethylene, gụnyere elu-...
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