manhole sewer cleaning system on the ground on a Sunny spring day
Schlüsselwörter
canalization,
cleaning,
cover,
dirty,
door,
drain,
drainage,
empty,
environmental,
garbage,
hatch,
hole,
home,
house,
household,
industry,
installation,
job,
manhole,
mud,
pipe,
purification,
repair,
sanitation,
scum,
septic,
septic tank,
sewage,
sewer,
sewerage,
site,
size,
sludge,
system,
tank,
treatment,
underground,
waste,
water
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