... high tenacity polyester webbing 2.Lightweight, soft, safe 3.Non-corrosive, non-conductive ... combination : Advantages:1, light weight, easy to use2, not to hurt the hanging surface3, lifting smooth, safe4 ... with inorganic acid resistance function, but vulnerable to damage of the organic acids9, polypropylene places ... acids11, nylon when wet strength loss of up to 15%12, if the sling is likely contaminated ...