機器
燃やす
arch
background
blue
business
color
construction
craft
cutting
danger
electric
energy
engineering
equipment
factory
flames
flash
heat
helmet
high
hot
industrial
industry
iron
job
light
line
man
manufacturing
mask
metal
one
orange
person
power
production
protection
safety
science
steel
technology
tool
trade
vertical
welder
welding
work
worker