... 0mm1470Mpa-1860MpaGB5223, AS1310, ASTM , BS Screw steel wire1. Type of Surface: Helix, Plane and indented2. Usage: This products is ... way bridges, buildings trusses, overhead crane beams industrial and civil prefabricated concrete floor, wall board, tubular piles, ... and unclear power station, etc...3. Enquiry please let us know the standard, tensile strength, quantity and packing requirement. Screw ...