black, polypropylene, long pipes are laid underground for communications. construction of a new microdistrict with houses and

are background black blue build circle communications construction ditch drain drainage engineering equipment factory group houses housing improve industrial industry infrastructure iron laid line long maintenance manufacturing material materials metal microdistrict new pipe pipeline pipes piping plastic plumber plumbing polypropylene pvc repair replace round service sewage sewer site stack stainless steel storage supply technology tube tubes tubing underground water work