Located in the beautiful scenery of Water Town of the South Yangtze River, Changzhou HOK Seal Material Co., Ltd. is a professional high-tech enterprise specialized in the R&D, production and marketing of engine crankshaft oil seals, valve stem seals, water-proof rings, gear-box oil seals, shock-absorbing and automobile rubber damping products, rubber molded parts and so on. By combining many years of experience of manufacturing, we have been committed to R&D of rubber sealing products, and continuously focused on the innovation of raw materials, formula, production technique, testing methods etc. At the same time, we're equipped with worldwide advanced manufacturing facilities, qualified R&D capabilities and testing device, adopting the advanced raw materials and formulas, to ensure consistency, ratability and stability of products. We've already passed ISO 9001: 2000 quality management systems. Currently we have been fully implementing the ISO/TS 16949: 2002 to build standardized system. In addition, we have also had the enterprise information and supply chain management integrated from quality, management, human resource, raw materials, R&D, production, sales to finance. We're always adhering to the principle of honest, quality and innovation, introducing advanced management theory and administrative system, assuring every customer of our professional knowledge, satisfying every customer with our solid attitude, to create customer value, customer satisfaction, and customer retention for all the customers home and abroad.