機器
abrasive
accuracy
action
automate
carbide
circle
closeup
cnc
control
cutting
danger
detail
engineering
equipment
fabric
factory
foundry
foundry industry
grinder
grinding
grindstone
industrial
industry
iron
machinery
machining
manufacture
manufacturing
metal
metalworking
occupation
plant
power
precision
production
production line
rotation
saw
sparkles
sparks
speed
steel
technology
tool
welding
wheel
work
workplace
workshop