The project is situated in Xinhui Base of CCCC Fourth Harbor Engineering Co., Ltd., Guanzui Village, Gujing Town, Xinhui District, Jiangmen City. The plants are 248m long, 132m wide and 23m high and with maximum span of 30m. Inside the workshop is 3-layer crane girders: The first layer is 3t semi-gantry crane, the second layer is 16t/3t twin beam overhead bridge crane, and the third layer is 50t/10t double-beam overhead bridge crane.