... ROHS,ISO9001,14001 4.Type:O ring,X ring,V ring,U ring,etc Production Description Rubber o ring 1.Material:natural rubber 2. Type:O ring,X ring,V ring,U ring ... Lushun Shanrong Rubber Co.,Ltd is a company with advanced management ,professional quipments and technical capabilities. ... manufacturing different rubber products. Our main products contains o rings, rubber seals, rubber gaskets, rubber grommets, ...