art
bar
black
block
bolts
build
clamp
clamped
connected
construct
construction
coupler
coupling
development
engineering
erection
framework
grip
industrial
industry
iron
light
link
metal
new
pipe
pole
post
preparation
project
rods
safe
scaffold
scaffolder
scaffolding
screw
shadow
silhouette
site
staging
steel
structure
support
swivel
temporary
tightened
tower
tube
white
working
workplace