機器
automate
background
circle
construction
cooling
cut
cutter
detail
diamond
disc
disk
engineering
equipment
factory
grinder
grinding
hand
industrial
industry
iron
light
liquid
lubricant
machinery
manual
manufacturing
metal
part
plant
polish
power
precision
process
production
rotate
saw
spark
speed
steel
technical
technology
tool
treatment
turning
welding
wheel
work
worker
workshop