Rubber O-Rings, X-Rings, Rubber Gaskets manufacturer / supplier in China, offering PTFE Coated O-Rings - Encapsulated O-Rings FEP/PFA Encapsulated O-Rings O-Ring Seals, Custom High Quality Flexible Pure Silicone Hose Tube Elastic Rubber Tubing High Temperature Medical Food Grade Silicone Tube, Custom High Quality Flexible Pure Elastic Rubber Tubing High Temperature Rubber Hose with Fabric and so on.