壊れた関節
adapter member
black tube
blue pipe
bracing beam
canal
clamp
clay
concrete floor
construction
control
danger
dig
dirt
dirty
drink waser
equipment
excavation
excavation pit
finished
fittings
gate valve
ground
heavy industry
hole
industrial
infrastructure
lay
mud
painted
piping
plastic pipe
plastic pipeline
plumbing
plumbing repair
pressure leak
sand
screw
screwed collar
sewage
sewer
supply
technology
trench
underground
waste system
welded joint
white bricks technical accident
work
定額
Repairing process of underground water supply pipeline. Black plastic tubes in trench of sand joined with steel pipes with multi joint member and screw flange.の素材 [FY31077300503]
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