HRB500E/HTRB600E四级五级抗震螺纹钢现货供应当
马钢HRB635E高强抗震螺..
HTRB600/HTRB63..
T63(HTRB630)高强..
HTRB630E滚轧直螺纹钢..
HRB500E/HTRB60..