bucket
build
clay
connection
construction
corroded
corrosion
damage
dig
dirty
ditch
drainage
dump truck
electric welding
excavator
ground
hole
infrastructure
leakage
leaking
line
mud
old
pipe
pipeline
pipes
piping
plastic
plumber
plumbing
pressure
pvc
reinforced concrete
reinforced concrete blocks
repair
round
rust
sewage
sewer
soil
system
trench
truck crane
valve
waste
water
water supply
welder
work
worker
定額
Opening by the excavator of a trench with water pipes by the excavator. Repair of urban water supply and sewerage, replacement of pipes and locking devicesの素材 [FY310132943911]
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