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Changzhou Shengong Machinery CO., LTD. was established in 2007 , It is located in Changzhou , Jiangsu , is more than 100 kilometers away from Shanghai and Nanjing , and sea , land , air transportation is very convenient . We has more than 60 employees , and covers an area of 15,000 square meters , now has more than 100 sets of CNC machine tools , gear hobbing machine , and heat treatment equipment . W...