Commonly used steel wire ropes include phosphating coated steel wire rope, galvanized steel wire rope, stainless steel wire rope or plastic coated steel wire rope, which are used in atmospheric environment. Manganese phosphating coated steel wire rope produced by patented technology has the longest service life, and hot dip galvanized-phosphating double coated steel wire rope is preferred in heavy corrosive environment. Phosphating coating improves the wear resistance and corrosion resistance of wire rope, which is the reason for improving the service life of wire rope, and smooth wire rope is being completely eliminated.