How about the Ultimate O ring rejection rate?

The rejection rate of Suzhou Ultimate Sealing Technology Co.,Ltd. O ring is pretty low in the market. Before shipment, we will test the quality of each product to make sure it is flawless. Once our clients receive second-best product or encounter the quality problem, our professional after-sales team are here to help.

The production technology for FKM gasket puts the company in a leading position. As one of Ultimate's multiple product series, O ring series enjoy a relatively high recognition in the market. Ultimate rubber gasket seal complies with the most important European safety standards. These standards include EN standards and norms, REACH, TüV, FSC, and Oeko-Tex. There is sufficient strength inside this product. Force analysis is performed prior to manufacture to find the forces acting on each element. And the best-suited materials are chosen to withstand these forces.

Ultimate Seal will make unremitting efforts for O ring development. Inquire!