Our factory was established in 1972 and specializes in the production of various products, including chains, sprockets, couplings, conveying equipment, metallurgical machinery, and copper processing. As a large-scale machinery manufacturing enterprise, we integrate design, development, production, and sales. The company operates four manufacturing subsidiaries and two production bases. We have obtained ISO 9001: 2008 international quality management system certification and have consistently been rated as AAA-level for creditworthiness by the Agricultural Bank of China, Zhejiang Branch.

Our factory currently employs over 630 staff members and is equipped with advanced production lines and sophisticated testing equipment. We have introduced advanced manufacturing technologies from Japan and France. Our products are designed using CAD and CMA systems, manufactured with high-quality materials, and processed with advanced heat treatment methods. They comply with GB, ISO, DIN, JIS, and ANSI standards, ensuring their performance meets customer requirements. The "Tuanjie" brand has a strong presence in nearly thirty provinces, municipalities, and autonomous regions across China, and our products are exported to regions such as Europe, the United States, the Middle East, South America, Japan, and Southeast Asia.

The "Tuanjie" brand chain is one of China's renowned brands in the domestic chain industry. Our factory is a national key high-tech enterprise, a vice-chairman unit of the National Chain Industry Association, a member of the China Heavy Machinery Industry Association, and one of the primary drafting units for chain standards in parking equipment. We are committed to enhancing our core competitiveness through corporate culture and technological innovation, establishing a strong social image during our development. Guided by the business philosophy of "treating others with sincerity and winning with quality, " we strive to build a century-old Zhuji Chain and create a world-renowned brand.