用冷拉法调直钢筋，I级钢筋的矫直冷拉率不得( )A.大于1% B.小于1% C.大于2% D.小于2%

作者: rantiku 人气: - 评论: 0

问题用冷拉法调直钢筋，I级钢筋的矫直冷拉率不得( )

选项 A.大于1% B.小于1% C.大于2% D.小于2%

答案 C

解析用冷拉法调直钢筋，其矫直冷拉率不得大于1%（Ⅰ级钢筋不得大于2%）

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