... and tearing resistant,Widely used ins used for packing chemical products, argriculture products, sand, cement etc.supermarkets ,retail stores ,families ,etc ... require;4)usage:bags can be used in the office or family,if you want,they can be produced ... coated protecting contents from bad weatherQingdao Weibao Plastic and Rubber Products Co.,Ltd is a large manufacturing and expor -oriented mixed company ...