For many years, it has been designated as supporting equipment for more than ten OEMs such as Changan, Wuling, SAIC, FAW, and Nanjing Automobile, and has been exported to the United States and Japan. In 2002 and 2005, it was twice named "Top 100 Auto Parts Suppliers" and "Excellent Parts Independent Brand Enterprise" by China Automobile News. The company is located in the Haikou Subdistrict Office of Xishan District, Kunming City, accompanied by the beautiful Xishan Mountain and Dianchi Lake. It is more than 30 kilometers away from Kunming City and is passed by Gaohai Highway, Anjin Highway, Kunyu Highway and railway, so the transportation is convenient. Xiyi Company has gone through an eye-catching 70-year history: in the 1940s, it opened mountains and built factories and started a business through hard work; in the 1950s, it copied products and consolidated people's power and wrote a new chapter in economic development; in the 1960s, it bravely braved a new path of localization and opened a new chapter in economic development. *** A heavy page in the history of machinery in China; in the 1970s, we designed and manufactured excellent products to meet the needs of national construction and export aid; in the 1980s, we transformed and took a new path, and our products developed in an all-round way, and the "Chunhua" brand bicycles were well-known in China; in the 1990s, we experienced glory After heavy losses, Xiyi was reborn in the ashes of Phoenix Nirvana... In 2002, Xiyi was restructured and established as a wholly state-owned company. In 2005, it was further restructured into a joint-stock company. In 2008, "West Instrument Co., Ltd." was listed on the Small and Medium-sized Enterprise Board of the Shenzhen Stock Exchange.

Xiyi Company has total assets of more than 800 million yuan and more than 3,000 employees, including nearly 300 engineering and technical management personnel with intermediate and senior professional titles. It has strong capabilities in mechanical processing, forging, sand casting, precision casting, surface treatment, heat treatment, and mold design and processing capabilities such as knives, clamps, and measuring. It has a nationally recognized calibration laboratory and a ministerial-level physical and chemical testing institution. It passed ISO9001(2) quality system certification in 1997 and ISO/TS16949 quality system certification in 2006. In 2007, it was recognized as one of the tenth batch of provincial enterprise technology companies in Yunnan Province. The center won the title of high-tech enterprise in 2008.

XIYI Company is the largest professional manufacturer of automobile engine connecting rods in China. "XIYI" (Xiyi) brand connecting rod products and trademarks have been awarded "Yunnan Province Famous Brand Products" and "Yunnan Province Famous Trademarks" respectively. title. For many years, it has been designated as supporting equipment for more than ten OEMs such as Chang'an, Dong'an, Wuling, SAIC, FAW, Nanjing Automobile, Yunnei, etc., and exported to the United States and Japan. With good product quality and excellent after-sales service, it has won the "" The honorary titles of "Excellent Supporting Factory" and "Designated Supporting Enterprise". From 2002 to 2008, it was rated as one of the "Top 100 Auto Parts Suppliers" and "Excellent Parts Independent Brand Enterprise" by China Automobile News.

Xiyi Company is now relying on the New Kunming Construction and Haikou Emerging Industrial Park to firmly seize the policy opportunity of the national "Eleventh Five-Year Plan" to give priority to encourage and support the equipment manufacturing industry and focus on supporting key functional components. Make full use of the technical advantages of the machine tool industry in Yunnan Province and the joint venture company to continuously accelerate its own development and growth. Now it has formed a good situation of simultaneous development with three major axes of automobile engine connecting rod products, other industrial products, machine tools and functional component products.

In 2005, Xiyi Company entered the ranks of Kunming's "Top 100 Enterprises in Tax Contribution" and ranked 80th among the "Top 100 Enterprises in Yunnan". The company has been awarded titles such as "Top 100 Main Business Revenue Companies in Kunming in 2007", "Large Taxpayers in Kunming in 2007", "Top 100 Excellent Enterprises in Yunnan Province" and "Kunming Harmonious Labor Relations Enterprise". .