... than u-panel bags. Waterproof: Polyethylene liner or lamination Lifting: Usually with 4 corss corner loop stype, fit for ... in pp packaging products, such as pp woven bag, opp bag, pp woven shopping bag, pp woven fabric, pp woven sheet, FIBC, ... machines, circular looms, color-printing machines, film-covering machines, bag-making machines, and production & management experience, high technical force, ...