... experiec 1. PP for crystallization type polymer, commonly used plastic in PP most light, density of just 0.91 ... , yi deformation. 6.This product material PP, mainly used in communication products accessories Item name:cnc plastic rapid prototype makingCertification ... Materials available: Plastic--ABS, PC, PV, PP,PMMA, POM, PA(NYLON), RUBBER, SiliconeMetal--Aluminum, Copper, Brass, Stainless Steel,Sheet ...