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Plastic bags can be divided by material OPP, CPP, PP, PE, PVA, EVA, composite bags, co-extruded bags. OPP plastic bag: Characteristics: hard, pull unchanged. Not stretch (two-way pull stretch)...
2015-01-09In the flexible composite packaging materials, the number used in food and pharmaceutical packaging accounts for a large proportion. This is because of its durability, hygiene and safety of food, dr...
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