... +IWRC1.Features: shares between layers of wire linear contact, and lay length is same, ranging from layers of steel wire ... shift steel Shaft enhance blast furnace hoist, oil drilling, belt conveyor and cableway traction, such as cable cars, excavators, large cast cranes ... , crane, ship loading and unloading.3.Executive Standard: GB/T20118-2006 GB/T8918-2006 ...