metal penumatic oil seal 20 years experience trusty 1.Good Quality 2.Various Material and Size 3.The goods have pass ISO9000 metal ... penumatic oil seal Feature of Oil Seal: 1. Several material f or Oil Seal, Rubber Oil Seal, Rubber Seal, O-Ring,Rubber ... size. 5. Optional color for you of the Oil Seal,Rubber Oil Seal,Rubber Seal, O-Ring and Rubber Gasket: Black, red, yellow ...