機器
background
blade
caliber
circle
circular
construction
cut
cutting
diameter
die
disk
equipment
factory
grind
industrial
industry
innovation
instrument
iron
manufacture
manufacturing
metal
part
power
rotary
rotate
round
safety
saw
sharp
sharpen
sharpens
slitting
spark
speed
steel
technical
technology
tool
top
unused
view
welding
wheel
work
worker
workshop