... performance in one:1, wear resistance of the plastic cap, than nylon 66 and polytetrafluoroethylene high 4 ... high six times;2, the impact strength of column plastic for PC 2 times, ABC 5 times, and can ... .11;4, impact energy absorption value in all plastic for the event, and sound attenuation effect is good; ... food and drug;8, density in all engineering plastic in minimum than teflon light 56%.Ultra-high ...