機器
aluminium
automated
automotive
carving
cnc
cogwheel
cutter
cutting
detail
engineering
equipment
factory
gear
geometric
heavy
industrial
industry
iron
machinery
machining
macro
manufacture
manufacturing
mechanical
mechanism
metal
metalwork
metalworking
mill
oil
part
pinion
power
precision
processing
production
screw
shaft
steel
technology
thread
tool
tooling
worm