機器
紡錘
automate
bench
blade
circle
cnc
construction
coolant
cut
diamond
disk
drill
electric
engineering
equipment
factory
grind
grinder
hand
industrial
industry
instrument
iron
lathe
light
machinery
machining
manufacturing
metal
part
polishing
precision
process
processing
production
rotate
safety
saw
sharpening
spark
steel
technology
tool
treatment
turning
wheel
work
worker
workshop