Nanjing Nanjing tons of bags used corn starch used tons of bags used tons of Nanjing FIBC bag is polypropylene as the main raw material, adding a small amount of stability seasoning mix evenly through the extruder melt extrusion of plastic film, cut wire, then stretched by heat setting is made of high strength low elongation of PP raw silk, and then by the textile, lamination made of plastic woven fabric, and sewn back straps and other accessories made of tons of bags