PP Woven Bag, Valve Bag, FIBC manufacturer / supplier in China, offering Brown Paper with BOPP 3 Layers Package Packing for Cement Kraft Paper Bag with Valve Port, 10kg 20kg Customized Capacity Dimension Plastic Paper Composite Kraft Paper Bag, Customized Color Printing Capacity 10kg 25kg Large Bearing Kraft Paper Bag with Valve Port and so on.