Kanalbau - neue Leitungsrohre werden verlegt
Schlüsselwörter
piping,
public works,
construction industry,
tube,
contractor,
under construction,
construction work,
cross section,
lifetime,
cover,
sewage,
connecting,
construction,
sewer,
duct,
subterranean,
locked,
wooden board,
new construction,
wooden board,
plank,
isolated,
isolation
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