Plastic extrusion, senge UPVC (rigid polyvinyl chloride) profiles kana pombi zvigadzirwa, zvinonyanya kuumbwa kuburikidza nekusanganisa, extrusion process, kuumba, kuburitsa, uye kucheka kwePVC resin nezvimwe zvine hukama.Zvinhu zvinokanganisa mashandiro ezvigadzirwa zvinofukidza e...
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