Yas extrusion, xws li UPVC (txheej polyvinyl chloride) profiles lossis cov khoom siv yeeb nkab, feem ntau yog tsim los ntawm kev sib tov, extrusion ua, shaping, tshem tawm, thiab txiav PVC resin thiab lwm yam additives.Cov yam ntxwv uas cuam tshuam rau kev ua tau zoo ntawm cov khoom npog e ...
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