senior manual worker moving gas cylinders in metal industry

60years business container cylinder day equipment expertise flooring focusonforeground fossilfuel fuelandpowergeneration gas gastank handtruck holding horizontal incidentalpeople indoors industry lowsection manualworker manufacturing metal metalindustry naturalgas occupation oneperson photography protectiveworkwear pushing reflectiveclothing responsibility safety senior seniormen standing storagecompartment worker working youngadult