the technician is cutting the black steel pipe after the freezing pipe because cannot shut off valve.technician working on hospita

air background because black blade cannot circular construction cut cutting diamond disc disk drill electric engineering equipment factory fire flash freezing glove grind grinder hand hard hospita hospital industrial industry iron light machine manual mechanic metal pipe plumbing power protection repair round safety saw shut siteconcept spark sparkle speed steel system technical technician technology tool valvetechnician welder wheel work worker working workshop