Zhengchuang Tower Crane Spare Parts Co., Ltd.is located in Shenyang.The Chinese machinery industry manufacture and production base,and is large enterprise of national construction machinery manufacturing. Our factory belong to Shenyang Sanyo Building machinery Group. The first one start produce Tower Crane in China from 1983 the Potain Technology introduce in China. Till now we are still the biggest tower crane factory in China. Of course as I know the first high quality all over China tower crane factory. We sell the tower crane and delivery of spare parts for tower cranes. The enterprise has been rapid developed in recent tears,with an area of 1,080,000 square meters,and has become a super large manufacturing base of tower crane in domestic and overseas.The main products are "ZCJJ"brand series of tower crane ,and it has 2300 sets of various big ,heavy and top facilities,equipped with specializing produnction center such as metal structure,mechanical processing,heat treatment,production package ,and matched with comprehensive economic entity of steel pretreatment,assembly produntion lines.