Mapurastiki anogona kukamurwa zvakafara kuita marudzi manomwe makuru, anosiyaniswa nemakemikari awo, zvimiro, uye mashandisiro: Polyethylene (PE): Polyethylene inogoneka uye inoshandiswa zvakanyanya thermoplastic polymer.Kune akati wandei subtypes e polyethylene, kusanganisira yakakwirira-...
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