英文關鍵字
bending
billet
engineer
engineering
engineers
equipment
factory
forming
heavy
industrial
industry
job
machine
machinery
machining
man
manual
manufacturing
mechanic
men
metal
metallic
metalwork
metalworking
modern
people
plant
processing
production
professional
profile
remove
repair
repairman
rolling
serve
sheet
steel
technician
technology
two
work
workers
working
workman
workshop