機器
arc
automated
automatic
automation
bender
bending
bending metal
cnc
engineer
engineering
equipment
fabrication
factory
folding
forming
hydraulic
industrial
industry
machinery
manufacture
manufacturing
material
mechanic
metal
metal forming
metalwork
metalworking
occupation
operation
part
pipe
pipe machine
plate
press
process
processing
production
professional
punch
roller
sheet
steel
technician
technology
tool
tube
work
worker
workshop