Black Polyimide Film manufacturer / supplier in China, offering Factory Supply Carpet Backing Raw Material PP L5e89 Yarn / Raffia Grade Polypropylene Pellet, Plastic Raw Material Polypropylene PP L5e89 Granule Pellet Raffia Grade for Yarn, China Manufacturer Virgin Resin Polypropylene PP L5e89 Yarn Raffia Grade for Plastic Woven Products and so on.