Keywords three layer coextruded;environmental protection;polylefin heat shrinkable film;POF;double bubble system;high elasticity;stretch ratio;blow ratio;shrinkage ratio;

• 三层共挤;环保型;聚烯烃热收缩膜;双泡管膜法;高弹态;拉伸比;吹胀比;收缩率;