Zhangjiagang Hongyu Rubber Spring Co., Ltd. is a professional manufacturer of rubber sealing products, while the company is also a member company of the National Hydraulic and Pneumatic Sealing Industry Association, member unit of Pump Branch of China General Machinery Industry Association, and council member of Jiangsu Provincial Rubber Industry Association. Founded in 1988, the company has acquired the national industrial production permit issued by the Administration of Quality Supervision，Inspection and Quarantine, of which the Certificate No. is XK13-025-00024. The company is also the drafting unit for the O-ring standard of the national industry mechanical seal.
The company is the domestic production base which supplies the most complete varieties and specifications of the O-ring for mechanical seal. The company products are mainly used in mechanical seals, pumps, valves, and mining machinery and other fields. The company mainly focuses on type 45 ° and type 90 ° products, i.e. O-ring, FEP coated O-rings, and the company's double-coated O-ring is the top 1 product in domestic market. Products also contain composite PTFE gaskets, framework oil seal and other rubber products for various valves.
The company is one of the the domestic companies that enjoys the the largest size and the most complete type in R&D and production of FFKM rubber.
The material for company's rubber seal products: FFKM, fluorubber (F26, 246, imported and domestic), MVQ, HNBR, NBR, and CO etc.
The company insists on pursuit of excellence and innovation, continues the development and application of the new materials, and upholds the quality first and sincere service principle to provide our clients with high quality, high performance, high-tech products.