... 2) Meet ROHS requirements 3) Can resist high tem exhaust rubbe pipe gasket Silicone sealing ring ,Eco-friendly ,high and low ... Japanese partners, Nanchang University and Designing Institute of Shenzhen Rubber Research. The company has top capability in R&D ... in synthetic rubbers and special rubbers such as: nitrile rubber, 3-polybutadiene rubber, SBR, neoprene, PIBI,EPDM, etc. Our products mainly ...