英文關鍵字
man
chooses
foam
pipes
hardware
store
pipe
water
tube
insulation
energy
color
background
industrial
technology
thermal
pipeline
industry
grey
circle
construction
heat
polymer
resourceful
cut
horizontal
gray
copper
worker
pattern
material
roll
polyethylene
home
conductivity
thermo
texture
long
close
heap
improvement
view
insulated
insulator
protection
wallpaper