機器
3fut
abrasive
accuracy
background
business
carbide
cnc
coolant
cooling
corundum
detail
diamond
disk
engineering
equipment
fabric
fabrication
factory
foundry
grinder
grinding
head
heat
industry
iron
machinery
machining
manufacturing
metal
metalworking
mill
operation
polish
polishing
precision
process
production
rotation
sharpening
sparks
steel
stone
technology
tool
turning
water
welding
wheel
workshop