age
building
canal
city
concrete
conduit
construction
dig
dirty
drain
drainage
emergency
energy
engineering
equipment
excavation
ground
grunge
industrial
industry
infrastructure
land
metal
municipal
network
new
pipe
pipeline
pipes
piping
pit
plumbing
reconstruction
repair
repairing
replacement
rust
sand
sewage
sewer
sewerage
street
system
trench
underground
urban
water
water pipes
work
worn
定額
District reconstruction of the street of the district heating pipeline and the replacement of old pipes with new ones. Heating main construction for urban infrastructure, city development conceptの素材 [FY310132392708]
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