英文關鍵字
business
cardboard
cellulose
commerce
condenser
conveyor
cushion
ecology
environment
equipment
factory
house
industrial
industry
label
large
machinery
makes
manufacturing
material
matter
mill
newspaper
office
offset
old
paper
plant
pollution
press
process
processing
product
production
profit
publishing
raw
recycling
reel
roll
roller
secondary
shop
technical
tissue
trade
waste
water
webset
white
work
worker