A.電弧焊 B.閃光對焊 C.電渣壓力焊 D.搭接焊 E.電阻點(diǎn)焊
A.120mm B.80mm C.60mm D.100mm
A.水平拉結(jié)筋 B.水平2Φ4鋼筋網(wǎng)片 C.芯柱