... C45 CK45 Cm45 AIIS1045 SAE1045 ASTM1045 XC45 carbon structural steel high quality Grade: 45# 45B S45C C45 CK45 Cm45 AIIS1045 SAE1045 ... in Laiwu, meaning that we can supply our customers with high-quality and low-cost products. We can also provide steel products ... round steel, steel billet, strip steel, gear steel, twisted steel, channel steel, etc. All these products are manufactured by Laiwu Steel ...