architecture
assembled
background
beam
beams
blue
building
construction
construction industry
crossbeam
design
engineering
exterior
factory
frame
framework
girder
industrial
industry
infrastructure
iron
manufacturing
material
metal
modern
nobody
plant
project
roof
safety
site
skeleton
sky
steel
steelwork
storehouse
strength
structural
structure
sturdy
support
technology
truss
unfinished
urban
warehouse
warehousing
work
workshop