Is a wire rope (rod) deep processing products

Made up of many wire twist into a rope used in industry, widely used in all kinds of industrial, mining and transportation. There are many different kinds of steel wire rope, but used in oilfield is a round rope, only have a single or double twist twist, and in the majority with double twist. Double twist rope is wire twist into a, again by a few strands twisted into a steel wire rope, wire rope at the center of both  core, there is also a steel core. With several root manual hoist section shape and the diameter of the wire, according to certain rules as twisting spiral wire bundle. Is a wire rope (rod) deep processing products, in steel wire products occupy a larger proportion. Origin, development and current hoist equipment in the steel wire production before using the hemp rope and chain, was later by organic fiber and metal chain to rub into the low tensile strength of the rope. With metallic ore and coal mining and transportation in the elevator with the development of the hoist machinery, the rope can not meet the requirements, began to replaced by metal wire twist twist wire.