assembling
cement
concrete
conduit
construction
culverts
damage
digging
dirty
drain systems
drainage
excavation
excavation works
foundation
ground
grunge
hole
industrial
infrastructure
installation
installing
job
joints
large
mesh
municipal
network
pipe
pipeline
pipes
pit
plumbing
problems
pumping
reconstruction
repair
repair work
replacement
section
sewage
sewer
sewerage
system
systems
trench
underground
waste
water
water tightness
work
定額
Installation of concrete sewer wells in the ground at the construction site. The use of reinforced concrete rings for cesspools, overflow septic tanks. Improvement of wells and storm sewage - Imageの素材 [FY310132930575]
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