機器
automatic
automation
band
bandsaw
bar
blade
blades
construction
cool
cooling
cut
danger
device
diameter
equipment
factory
heavy
industrial
industry
iron
light
machinery
manual
manufacture
manufacturing
mechanical
melt
metal
oil
pieces
pipe
power
production
rod
rotary
safety
saw
sawing
sharp
sharpening
speed
steel
technology
tool
work
workshop