Zhejiang Huzhou Shuangshi Chain Transmission Co., Ltd. is the design and production of agricultural machinery, construction trucks, cars, motorcycles and industrial chain of professional company, is one of the nation's largest chain of professional production companies.

The company covers an area of 101,000 square meters, construction area of 47,600 square meters, has a staff of 500 people, including engineering and technical staff of 78 people; in the production of automobile, motorcycle over with a chain and a variety of industrial, agricultural chain of 12 million meters; in the output value of 250 million or more. The major products for the domestic automobile engine factory, motorcycle OEMs, truck and agricultural equipment manufacturers and other host facilities, accounted for the largest share of the domestic host supporting the market and exported to Europe, America, Southeast Asia and more than twenty countries and regions, some products have been the same foreign OEMs supporting.

Companies in the industry taking the lead through the ISO9001: 2000 quality system certification, the automotive chain product passed ISO / TS16949 quality system certification. The company's testing center has been approved for use ISO / IEC17025 standard test ability related quality inspection agency and was recognized as the national secondary level units of measurement, the center has a 10,000 rpm / min automatic frequency of high-speed wear test bench, high-frequency fatigue testing machine advanced test equipment, testing means complete. Over the years the company's production of "Rui lion card" chain with excellent quality and perfect service has won praises from users. Over the years by a number of supporting plant as "Excellent Supplier" and "free products." "Rui Lion" trademark was awarded China Famous Brand, Huzhou City famous trademark. "Rui Lion" brand was rated as Zhejiang famous brand chain, Huzhou City brand.

And specialized production companies in order to develop automotive chain in 2000 has set up a subsidiary - Huzhou refinement car chain drive Limited (provincial high-tech enterprises) and automotive research and development center chain. After several years of painstaking efforts we have successfully developed a car engine timing chain, oil pump chain, common rail pump chain, balance chains, drive chains and a series of new products to fill the gaps, and all were above the provincial level, "Key New product of the Year "award, which ended with a chain of automobile engines long 100% dependent on imports of history, car chain project bonds eligible SETC Key technology projects, and won the national Ministry of Science and technology Innovation Fund for SMEs; 2004 It is to absorb China Society of Automotive Engineering engine Branch of member units.

Shuangshi always adhere to "cast sharp Lion brand, to win the trust of the world users," the quality and take strategic route science and technology enterprises, to the cutting edge of technology industry development; commitment to technology and improve the quality of the chain of manufacturing, in order to meet customer needs and make unremitting efforts.