機器
accuracy
aluminum
automated
business
closeup
control
cutter
cutting
die
drill
drilling
engineering
equipment
factory
foundry
hole
industrial
industry
iron
lathe
letter
line
machinery
machining
manufacturing
metal
metallic
mill
molding
objects
operating
part
production
screw
shiny
stainless
steel
technology
tool
tooling
turning
work
working
workshop