accident
basement
building object
city communications
connect
construction
contractor
crane
damaged plumbing
danger
development
dewatering
digger
digging
drainage
engineering
engineering industry
excavation
excavators
float
gas hardware
heating
hole
immersion
industrial equipment
infrastructure
large ditch
leaky conduit
major repair
modern technologies
new road
outdoors
plastic pipeline
plumbing
replacement
rusty pipes
security operations installation
sewerage
shovel
street
suction
supply pump
trench
trenches
underground water
urban sewer
utilities
waterproofing
welding
work
定額
Workers paving urban highway engineering. Modern techniques performed repair and replacement of electrical networks and cable laying modern optical communication.の素材 [FY310143792447]
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