英文關鍵字
accessory
action
automatic
bending
chain
closeup
connect
continuos
craft
creation
cutter
detail
device
draw
electricity
energy
engine
equipment
factory
gold
goldsmith
indoor
industrial
industry
inside
instrument
jewelery
link
machine
manufacturing
mechanical
metal
motion
moves
object
power
precious
process
product
production
professional
recycle
ring
run
safety
threading
tripodshot
working
workshop
worksite