... 75 degrees, pitch f Product detailed descriptionUse 45 # high quality carbon structural production, high tensile strength, suitable for various kinds of frame ... , left-handed & bedroom pass type, reduce type3. Ingredients: 45 # quality carbon steel is made4. HRB335 Sutiable HRB400 reinforced HRB500, rebar ... yield strength of tensile strength mpa 600Mpa elongation > = = 16 percent Roll Forming Machine