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Shandong Topkit Construction Machinery Equipment Co., Ltd., is a high-tech company specialized in the manufacturing and supplying for hydraulic pumps, valves, motors, reducers, gearboxes, etc.
We mainly focuses on hydraulic parts for hydraulic excavators, and the products have been serialized. We dedicated on the following three systems and five series products. We specialized in Positive flow system, negative flow system, load sensing control system