英文關鍵字
and
architecture
asphalt
bitumen
black
building
buildings
business
coating
construction
contractor
cover
detail
equipment
fire
flame
flat
gas
grey
hand
heat
human
industry
installing
insulation
material
melt
new
occupation
people
protection
repair
roll
roof
roofing
ruberoid
scene
sheet
skill
specialist
structure
surface
technique
technology
texture
waterproofing
worker
working