1.pp big bag is used for loading powdery,grainy,nubbly material and others . 2.we have passed ISO9001-2008 certification. 1.pp big bag is used for loading powdery,grainy,nubbly material . 2.we have passed ISO9001-2008 certification.· Food Industry - Sugar, Salt, Flour, Dextrose, Starch, Food Additives· Chemical Industry· Construction Industry· Agricultural Industry - Seed, Grain, Popcorn, Seeds, ...