... GB 1102-74, SC 1443-86, ISO, BS, DIN, JIS, API and RRW-410DNominal Tensile Strength: 1470,1570,1670,1770,1870,1960 ... hoisting, derricking, lifting, towing, port load and unload, blast furnace boisting and oil well drilling. The rope with wire core can be ... IWR4.Suitable for vertical well drilling goisting, cage channel of vertical well drilling, port load and unload derrick ,and tower crane. 18×7+FC ...