China Dredger supplier, Dredger Vessel, Dredge Manufacturers/ Suppliers Yiyang Zhonghai Shipyard Co.,Ltd Shenzhen Branch. Sign In. Join Free For Buyer. Search Products Suppliers Product Directory ... Yiyang Zhonghai Shipyard Co., Ltd. is a stateowned company, it was founded when the original Yiyang Shipyard Factory changed its company ...