ribbed steel bars

Cold-rolled ribbed steel wire rod is made from the general wire which is after cold extrusion.generally, its diameter is 5mm.this strength steel is much higher than the level. CRB550 grade cold-rolled ribbed steel bars administering the standards of JGJ95-2003 is also with the the ordinary low-carbon steel, carbon steel ,high-quality hot-rolled, low-alloy steel rods for the materials, but reducing post-cold-rolled. its surface is cold-rolled into two or three sides of the crescent-shaped cross-ribbed steel bars.