英文關鍵字
billet
clamping
detail
engineer
engineering
equipment
fabrication
factory
hydraulic
industrial
industry
iron
laborer
machine
machinery
machining
man
manufacture
manufacturing
mechanical
metal
metalwork
modern
operating
operation
operator
part
plant
pneumatic
precise
precision
press
process
processing
production
punch
punching
special
stamping
steel
technician
using
work
worker
working
workman
workplace
workshop