... , gusseting bag, perforating bag, color printing bag, sand bag, building material bag, chemical industry bag, transparent bag, anti-skid bag ... , valve bag, food bag, sandwiched bag, inner laminated bag, plastic bag, anti static bag, U.V. bag, block bottom bag ... are widely used in the package of feeding stuffs, fertilizers, building materials, and chemical industry, etc.Custom-made is acceptable. pe ...