英文關鍵字
cellophane
cleanliness
equipment
factory
garbage
industry
metal
plant
plastic
production
recycling
roller
rotating
shaft
spinning
transparency
winding
wrapping
英文關鍵字
cellophane
cleanliness
equipment
factory
garbage
industry
metal
plant
plastic
production
recycling
roller
rotating
shaft
spinning
transparency
winding
wrapping