電極
arc
cloth
construction
cut
cutting
electric
engineer
equipment
fabrication
factory
fire
flame
gas
hot
icon
illustration
industrial
industry
iron
isolated
laser
manufacturing
mask
metal
metallurgy
metalwork
oxygen
pipe
pliers
production
repair
sign
spark
sparkle
steel
symbol
tool
tools
torch
visor
weld
welded
welder
welding
work