We are AOK Valve Stem Seals Ltd, a professional manufacturer of valve stem seals, bonded seal (sealing washers), Large size O-Rings, Large size Oil Seal, bushings and precise customized rubber molded products. With the ability of in-house mold development and manufacture, we are capable of making various types of rubber products from mold design to finished products.
AOK have obtained the ISO9001 and TS16949 certificates in 2003 and 2008 respectively, and we are approved by our valued customers from all over the world. We are determined to offer satisfactory products, so do not hesitate to get in contact with us, we will be very pleased to assist you at any stage of your project. We accept OEM and ODM orders, and welcome customers' drawing and samples for cooperation of product development production.