To ensure the quality of the oil seals, all the products of ASA have been made as per ISO certification. Besides, ASA will provide free ASTM 2000 elastomer test reports and free slabs and buttons for your independent testing of each oil seal. View the oil seal product category to check out further details of ASA products and welcome to send your inquiries.

ASA is an experienced oil seal manufacturer with more than 10 years experiences in oil seal tooling design and manufacturing. ASA offers oil seals for European cars, U.S. tractors, agricultural machinery and more. We will be happy to help you.