... :0.5mm-32mm We are a manufacture specialised in making cold drawn steel bars including round steel bars, square steel bars, flat ... steel bars, turret / hexagon steel bars, cold drawn wire rod. And the steel grade contains: 12L14,SAE 1006 ... ,C1118,Y15Pb,SUM22L,11SMnPb30,SUM24,SUM42,SCM440,4140S20C to S55C, CK20 to CK55, 10# to 55#, Q235, SCM440, SCM 420, 40Cr ...