... S45C/GB 45 2,c45 carbon steel 3,carbon steel s45c 4,c45 hot rolled steel 5,flat bar s45c Sichuan ... Liaofu Special Steel Trading Co., Ltd.aisi 1045 / din 1.1191 / ck45 ... :Outer Diameter: 6mm~426mmThickness: 1.5mm~16mmSichuan Liaofu Special Steel Trading Co., Ltd.flat bar s45c hot rolled steel1, ... ,aisi 10453,sae 10454,hot rolled steelApplication: used for making shaft parts, etc.