We are a professional factory of Seals in china.Our products are including: 1. Mechanical Seal2. Oil seal3. Hydraulic Seal4. O-ring5. Sealing Material: like: silicon Carbide, Tungsten Carbide(TC), Carbon and Ceramic1. All type of rubber products If you have any inquiry for above items,Pls contact with us.We are looking forward to your early reply.Best wishes JANE Li