某建筑工地采购的下列钢筋数据正确的是()。
A.HRB300极限强度为450MPa,公称直径为30mm
B.HRB400极限强度为500MPa,公称直径为30mm
C.HRB500极限强度为600MPa,公称直径为40mm
D.HRB600极限强度为800MPa,公称直径为40mm
某建筑工地采购的下列钢筋数据正确的是()。
A.HRB300极限强度为450MPa,公称直径为30mm
B.HRB400极限强度为500MPa,公称直径为30mm
C.HRB500极限强度为600MPa,公称直径为40mm
D.HRB600极限强度为800MPa,公称直径为40mm
责编:cjb