... Color at clients' requirement. We use nitrile rubber, natural rubber, EPDM rubber, fluorine rubber, styrene butadiene rubber, silicone, neoprene and other various kind of polymer ... , seals, jewelry silica, silica gel tableware, hardware, plastic packets, rubber parts and other products developed. This is our valcunizing workshop ... Join us and let open a bright future together! Oval Rubber Grommets