Shanghai Punan reducer General Factory is one of the members of China Construction Machinery Association. It is a modern joint-stock enterprise specializing in the production of winch reducer construction machinery. It has a production history of more than 30 years and has been developing continuously. Our factory mainly includes construction winch, electric winch, manual winch, construction winch, speed control winch, pneumatic winch, hoisting winch, large tonnage winch, cycloidal pin wheel reduction There are eight types, more than 400 models and specifications, such as speeder, worm gear, reducer, motor, shear trigger, construction machinery, etc. the plant covers an area of square meters, and the whole plant has workshops and functional departments. The existing staff of our factory have been producing winch for more than 30 years. The products have formed standardized series. The winch produced by our factory has complete performance, reliability and specifications Convenient operation and reasonable price are ideal machines and tools for vertical lifting and horizontal slope hauling in bridge construction, hoisting and installation and other engineering sites. The winch produced by our factory was used in the national key project Daqing Oilfield Chongqing Egongyan bridge Jiangsu Jiangyin Yangtze River Bridge Anhui Wuhu Yangtze River Bridge Shanghai Lupu Bridge Shanghai Yangpu Bridge Shanghai Nanpu Bridge Shanghai Maglev high speed railway Shanghai inner ring high speed railway The winch produced by our factory, Shanghai Port Machinery Factory, is a long-term supporting winch produced by our factory. Our factory passed the third national level 3 metrological certification for the third time in March, and the winch products produced by our factory passed the expert appraisal organized by the Municipal Construction Committee and obtained the award of the Ministry of construction Issued the construction winch production license and accepted as a member of China Construction Machinery Association