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SUNBUN Group Co., Ltd., originated from Wenzhou Hydraulic Parts Factory, which was founded in 1993. Over the years, it has undergone continuous transformation in entrepreneurship, innovation, and intelligence. SUNBUN is deeply engaged in the field of electro-hydraulic power transmission and control systems and the injection molding machine industry, etc. Today, it has evolved into a national high-tech enterprise which integrates research and development, design, manufacturing, and sales into its operations, with four major R&D and manufacturing bases located in Wenzhou, Xuzhou, Shanghai, and Hangzhou. 

SUNBUN is committed to providing customers with precise, efficient, and safe solutions for electro-hydraulic power transmission and control systems. It strategically cooperates with Zhejiang University and other universities to conduct industry-academia-research collaboration, successfully overcoming key core technologies in hydraulic components. With over 280 patents, the group's hydraulic components have replaced imported ones in the construction machinery industry. Several projects of the group have been included in the National Torch Program and the National Spark Program. It has received awards such as the Second and Third Prizes of China Machinery Industry Science and Technology, and the First Prize of Zhejiang Machinery Industry Science and Technology.

Currently, the main products of the group include hydraulic valves, swash plate axial piston pumps/motors, internal gear pumps, reducers, injection molding machines, and electronic control systems. They cover more than 100 series and over 2,000 varieties. The group has obtained ISO9001, ISO14001, ISO45001, and EU CE certifications. Its products are widely used in the fields of construction machinery, agricultural machinery, environmental equipment, and industrial intelligence. The group ranks among the top in the domestic market share in the automotive crane industry. It has been recognized as a demonstration enterprise for brand cultivation by the Ministry of Industry and Information Technology and has been awarded the title of China Machinery Federation Quality Brand. It is also recognized as a well-known trademark in Zhejiang Province.

Crafting future, SUNBUN is continuously advancing the digitalization and intelligent integration in the manufacturing field. It has established intelligent projects such as FMS flexible production lines, AS/RS warehousing, and big data collection platforms. It has built a modern "lighthouse factory" and is leading the intelligent development direction of the hydraulic industry. 

SUNBUN has been recognized as a provincial-level and national-level high-tech enterprise. It has been included in the China Machinery Top 500 for five consecutive years and listed as one of the national key "Little Giant" enterprises. In 2021, it was recognized as a specialized, refined, distinctive, and new "Little Giant" enterprise by the Ministry of Industry and Information Technology. It is also an innovative leading (Gazelle) enterprise in the Municipal National Independent Innovation Demonstration Zone and the most beautiful factory in Wenzhou.