热轧带肋钢筋分为()三个牌号。A．HRB335 HRB400 HRB540B．CRB335 CRB

热轧带肋钢筋的牌号分为（)。A.HRB335B.HRB400C.HRB500D.HRB600

热轧带肋钢筋分为（ ）三个牌号。A. HRB335 HRB400 HRB540B. CRB335

热轧带肋钢筋分为（ ）三个牌号。A. HRB335 HRB400 HRB540

热轧带肋钢筋 牌号HRB335的抗拉强度为335MPa。

热轧带肋钢筋的牌号有HRB335 () HRB500级。A.HRB400B.HRB325C.HRB300D.HRB215

钢筋混凝土用普通热轧带肋钢筋的主要牌号有( )。A.HRE335B.HRB400C.HRBSOO###