... film, basic-material film,wind film production IntroductionTriple- layer co-extrusion salivate film production line adopts aslivate method ... basic-material film,wind film productionSpecail degined PP/PE triple layers co-extrusion mould die, made the composing ... sprue discharging, the quick liquid melt distributes equally.ComposingExtruder,screen changer,joint ,distribute machine,mould die, air bells ...