Prestress

13140 prestress products are offered for sale by suppliers on Alibaba.com, of which steel wire rods accounts for 14%, metal building materials accounts for 9%, and other construction material making machinery accounts for 1%. A wide variety of prestress options are available to you, such as cutting, decoiling and bending.You can also choose from astm, aisi and gb prestress,as well as from motor, gearbox, and engine prestress, and whether prestress is carbon steel, steel alloy, or galvanized steel.