英文關鍵字
metal
punching
workshop
work
manufacturing
closeup
industrial
technology
steel
control
production
equipment
industry
forming
machine
factory
worker
automated
modern
mold
operation
press
plate
process
processing
stamping
technician
part
manufacture
sheet
automation
bending
fabrication
maintenance
machinery
man
automatic
tool
service
punch
automotive
engineer
iron
heavy