assemble
assembly
building
bundle
construction
corrosion
decay
deconstruct
development
environment
extrude
fabricate
galvanized
grey
grunge
heap
horizontal
impenetrable
industrial
iron
linear
manufacture
mass
metal
oxidize
packed
parallel
pile
pipe
pipes
pollute
progress
reassemble
rust
scrap
shining
shiny
stack
stainless
steel
structure
surface
texture
trestles
tubes
tubular
wall
weld