機器
ablaze
blue
building
burning
circle
close
construction
cut
cutting
dark
detail
engineering
equipment
factory
fire
flame
flash
grate
grinder
hand
heat
hot
industrial
industry
iron
job
light
man
manufacture
manufacturing
metal
orange
production
repair
safety
saw
sawing
shipyard
spark
sparkle
speed
spin
steel
technology
tool
wheel
work
work tool
workshop