英文關鍵字
30s
aluminium
assembly
caucasian
chloride
circular
construction
cutting
door
doors
doubleglass
earmuff
factory
frame
glass
glazier
glazing
indoor
industrial
industry
laor
line
louvre
machine
male
man
manufacture
manufacturing
mechanic
model
noise
person
plastic
polyvinyl
precision
production
profile
protection
pvc
russian
shutter
storage
technician
technology
thermoplastic
tooling
window
worker
working
workshop