... , high tensile strength, suitable for various kinds of frame structure enginee.The detailed product descriptionProducts with hot-rolled ribbed ... bedroom pass type, reduce type3. Ingredients: 45 # quality carbon steel is made4. HRB335 Sutiable HRB400 reinforced HRB500, rebar, and ... times: fatigue strength test, connect in good condition. 45 # steel details1. Chemical compositionC (0.42 ~ 0.50) guimeng ( ...