1.ISO Certification 2.Model:TA ,TC ,TB ,SB,SC,SA,HTCR,HTCL etc. 3.Precisely mold design ... on your requirement;2. types of Rubber Oil Seal: TC, TB, TA, SC, SB, SA, VC, VB, VA, KC, KB, KA ... or O-Ring and Rubber Gasket is welcomed as well.7. Apply for: Auto, motorcycle, machinery, water pumps, valves, etc.8 ...