PP Woven Bag, Valve Bag, FIBC manufacturer / supplier in China, offering Customized Capacity Weight Color Printing 10kg 20kg PP Woven Bag with Valve Port, Black Carbon Cement Package Laminated Craft Composite PP Woven Bag with Valve Port, Square Bottom with Large Load-Bearing 10kg 20kg PP Woven Bag with Valve Port and so on.