1. We are professional manufacturer of rubber O-Rings.2. We can offer you a wide range of rubber O-Rings in all standard sizes and a lot of special sizes.3. Our O-Rings are made according to international standard: ISO9001.Available materials: NBR, SI, HNBR, SBR, FPM, FLS,CR, BR, IIR, NR, IR, PU, EPDM etc. All materials are RoHS compliantApplications: Automotive, air conditioner, machinery,Computers pumps, valves, furniture, toys, pneumatic components, cellphones.We can also produce o-rings according to your special request.