A.經(jīng)質(zhì)檢驗收共同確認(rèn) B.加旋0.5mm C.超聲波探傷檢查 D.復(fù)合磁化熒光磁粉探傷檢查
A.橫向 B.發(fā)紋 C.大于0.5mm D.小于0.5mm
A.75mm B.80mm C.85mm D.90mm