Muchikamu chemakemikari eindasitiri, petroleum-based C5 resin inomira pachena nekuda kwekuita zvinhu zvakasiyana-siyana uye zvakakosha zvivakwa, kunyanya mukugadzira zvinonamira, machira, uye zvisimbiso. Tangshan Saiou Chemical Co, Ltd ndeimwe yevanotungamira vagadziri veiyi itsva resin, ine mukurumbira nekuda kwe ...
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