機器
autogenous
background
black
construction
cutting
electric
electrode
equipment
gas
geometric
gun
handle
implements
industrial
industry
instrument
iron
joining
labor
manufacturing
metal
object
occupation
old
one
pattern
profession
professional
protective
repair
repeat
repeating
seamless
service
sign
simple
soldering
spark
technology
texture
tip
tool
torch
wallpaper
weld
welded
welder
welding
white
work