英文關鍵字
assembly
background
batch
billet
billets
blank
business
commercial
container
conveyor
detail
engineer
equipment
factory
finished
flange
flanges
goods
hole
industrial
industry
iron
machinery
made
manufacturing
material
mechanism
metal
model
parts
processing
product
production
ready
repair
sale
set
spare
steel
storage
storing
tools
transporting
warehouse
warehousing
working