電極
3d
anvil
apron
argon
brush
butt
carbon
color
device
dioxide
electric
engineering
equipment
facial
forging
frequency
gas
glove
hammer
helmet
high
holder
icon
igniter
illustration
isometric
item
line
mask
metal
oxygen
protective
robot
seam
sign
spot
station
steel
structure
symbol
torch
ultrasound
welder
welding
worker