機器
block
building
cement
composite material
concrete
construction
constructor
crane
development
equipment
factory
ferroconcrete
gantry
heavy
hoist
hook
housebuilding
industrial
industry
iron
machinery
manufacture
manufacturing
material
metal
metalwork
modern
nobody
overhead
plant
precast
production
reinforced
reinforced concrete
slab
stack
stacked
warehouse
work
workshop