HRB400钢筋弯曲检测参数钢筋直径弯芯直径D=4dD+3a(D+3a)±a/2标尺调节范围(mm)6244239~45~8325652~6026~3010407065~75~12488478~9039~4514569891~105~1664112104~12052~601872126117~135~2080140130~15065~752288154143~165~25100175~~钢筋直径弯芯直径D=5dD+3a(D+3a)-a/2标尺调节范围(mm)28140224210~238105~11932160256240~272120~13636180288270~306135~15340200320300~340150~170
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