Cold-rolled ribbed steel rebars have different specifications and standards according to different uses. Here we mainly introduce the specifications of cold-rolled ribbed steel rebars commonly used in concrete: one is cold-rolled ribbed steel rebars for reinforced concrete, including CRB550——bar diameter: 4~12mm and CRB600H——rebar diameter: 5~12mm; Rolled ribbed steel rebars, including CRB650 - steel rebar diameter: 4, 5, 6mm, CRB650H - steel rebar diameter: 5~6mm, CRB800 - steel rebar diameter: 5mm, CRB800H - steel rebar diameter: 5~6mm and CRB970 - steel rebar Diameter: 5mm.

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