According to the practice of ship building and repairing,the company builds up three-drum friction winch(airbag,slide and trollry)employed for ship-directional system and suitable for the sub-water engineering of various large ships.The pull of single rope meadures 80-1000KN and the rope capacity 500-3000M.
　　Successively,the company output large-size friction winches forlots of enterprises such as Dalian Ship Heavy and Ocean Engineering Co.,Ltd,Shangdong Rong Xi Group,COSCO Shipyard of Guangdong,COSCO of Dalian,Guangzhou HANGTONG Shipbuilding Co.,Ltd,Shenzhen Shipbuilding Trade Corporation,China Merchants Industry Holding Co.,Ltd(Shenzhen)and Nantong Tong Yang Shipyard Co.,Ltd.