英文關鍵字
architecture
bitumen
bituminous
black
brush
builder
building
coating
concrete
construction
contractor
covering
equipment
felt
industrial
industry
ink
layer
liquid
maintenance
man
modified
paint
painter
pitch
plasticizers
polymer
polymerbitumen
primer
protect
protection
reinforced
reinforcement
repair
resin
roofer
roofing
rooftop
rubber
ruberoid
site
surface
tar
tool
uniform
urban
waterproof
waterproofing
work
worker