单项选择题
A.5~10% B.10~15% C.15~20% D.5~15%
A.100*100*100mm B.150*150*150mm C.200*200*200mm D.70.7*70.7*70.7mm
A.热轧钢筋HRB335钢筋 B.热轧钢筋HPB235钢筋 C.热处理钢筋 D.冷热钢筋
A.100℃ B.50℃ C.68℃ D.93℃
微信扫一扫,加关注免费搜题
