beton
bitumen
black
building materials
cement
circular
clay
concrete
conduit
construction
construction site
dig
drainage
drainage pipe
drainage system
ground
hole
hydro
impregnation
industrial
industry
infrastructure
installation
laying
mastic
painting
pipe
pipeline
pipes
pit
plumbing
reinforced
reinforced concrete rings
repair
replacement
rings
sanitary sewer
sewage
sewer
sewer pipes
sewer wells
sewerage
system
trench
underground
water
water main
water supply
waterproofing
well
定額
Drainage well, water pipe repair, concrete rings for the well, pipe joint in the ring, pit for sewerage, waterproofing with black piping paint. high quality photoの素材 [FY310186830289]
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