機器
action
bright
business
cutter
cutting
dynamic
electrical
engineering
equipment
factory
hard
heavy
human
industrial
industry
instrument
iron
iron remove
labor
laser
machine welding
man
manufacturing
material
materials
metal
move
occupation
power
powerful
production
profession
professional
radiant
repair
run
shop
steel
technology
the iron and steel business
tool
welding
work
worker
young