焊条

为什么严禁开过的焊条桶在工地上使用？

soldering tape (brazing tape), welding strip (strip type electrode)

shielded inert-gas metal arc welding

resistance butt-seam welding【电】

self-regulating arc welding transformer【电】

percussive welding

single-pass welding

welding and cutting torch

alumino-thermic, welding