英文關鍵字
adapter
assemble
assembler
assembling
assembly
bolt
closeup
equipment
fabric
factory
fixing
glove
grip
gripping
hand
handle
industrial
industry
instrument
job
man
manual
manufacturing
mechanic
mechanical
metal
metallic
nozzle
nut
plant
power
process
production
professional
screw
screwing
socket
steel
tightening
tool
unit
universal
using
work
worker
workshop
wrench