当采用冷拉方法调直钢筋时,HPB235级钢筋的冷拉率不宜大于(),HRB33级、HRB400级和RRB400级钢筋的冷拉率不宜大于()
A.3%,1% B.4%,1% C.5%,2% D.2%,1%正确答案B
当采用冷拉方法调直钢筋时,HPB235级钢筋的冷拉率不宜大于(),HRB33级、HRB400级和RRB400级钢筋的冷拉率不宜大于()
A.3%,1% B.4%,1% C.5%,2% D.2%,1%正确答案B
