1. Cov khoom siv EPDM imported, du nto nthuav dav, zoo elasticity thiab compression deformation
2. Cov cua kub zoo heev thiab huab cua tsis kam, ozone tsis kam, siab tensile lub zog, zoo elasticity, tshav kub thiab aging kuj
3. Kev siv microwave curing txheej txheem ntawm kev tsim, du nto zoo li, tsis muaj kev sib koom ua ke