Du-Hope Int&＃039;l Group was transformed from Nanjing Machinery, Metals, Minerals, Medicines & Helalth products corporation , which established in 1960s- a fully state-owned company. now Du-Hope has its ship building factory, alum. ladder factory, power tools and hand tools factory. trading is still one of main target of all business, we mainly import USED RAILS R50-65 for ship-steel-plate. geniune suppliers are welcome