city district heating pipes with insulation welded together for new hot water pipeline system close up selective focus

arc background bond burns bury business canal central city close completion connect connection construction craft deep detail dirt dirty distribution district ditch electro energy equipment extracting fence field gas grid ground heating hole home hot industrial industry infrastructure iron joint long maintenance metal new parallel pipe pipeline pipework plumbing positions power reconstruction repair reparation safety seam season security solder splice steel street supply surface system technology texture three together town trench tube underground urban water weld welded welder welding work