... wpc making machine,wood plastic extrusion productin line wood plastic window profile line, wpc making machinery, wood plastic extrusion, production ... The finished product is mainly made from PVC, PE, PP wooden powder, cotton stalk, rice chaff and other natural fibers. ... PVC resin, polyolefin plastic and cellulose(straw, cotton stalk, wooden power, rice chaff, etc) with special procession and treatment. ...