PE is short for polyethylene, so PE bag is a transparent plastic bag made of polyethylene. PE bags are widely used, mainly for making films, containers, pipes, monofilaments, wires and cables, daily necessities and so on. , which can be used as high-frequency insulating material for TV and radar. PE plastic wrap can also be called PE bag. The plastic wrap in direct contact with food must be made of PE material, which is safer for human body.

Silk number refers to the thickness of PE bag. The greater the number of silk, the thicker the PE bag and the better the hand feel.