alloy
architecture
armature
bar
bars
base
building
cast
cement
column
compound
concrete
construct
construction
corrosion
corrosive
craft
cramp
design
dump
elastic
engineering
foundation
framework
grid
industrial
industry
iron
mesh
metal
metallic
parallel
pattern
pile
rebar
reinforce
reinforced
reinforcement
reinforcing
rod
round
rust
rusty
shiny
stack
steel
strength
strong
support
wire