英文關鍵字
assemble
assembling
assembly
blank
bolt
conveyor
detail
enterprise
equipment
factory
hand
human
industrial
industry
iron
job
labor
lining
manual
manufacture
manufacturing
mechanic
mechanical
mechanician
metal
metalworking
pad
padding
parts
people
plant
process
product
production
putting
shop
steel
tool
unit
washer
work
worker
working
workplace
workshop