英文關鍵字
metal
metalworking
cutting
screw
industrial
metalwork
thread
industry
equipment
threading
worker
threaded
technology
work
machine
milling
tap
steel
mechanical
workshop
tool
stainless
factory
mechanic
detail
hand
lathe
engineering
process
heavy
cut
manufacturing
carving
manufacture
machining
production
operator
turning
pressure
texture
accuracy
part
shiny
machinery
craftwork
manually
cutter
construct