機器
alloy
aluminum
business
clamp
closeup
computer
cut
cutting
drill
drilling
engineering
equipment
factory
horizontal
industrial
industry
jet
lathe
liquid
machinery
machining
macro
manufacture
manufacturing
mechanical
metal
metalworking
part
plant
pouring
precision
pressure
process
processing
production
rotate
sharp
shop
spinning
spray
stainless
steel
technology
thread
tool
water
work
worker
workshop