dust mask
face-mask
headlamp
headlight
light rail
man
muni
night
NTK
oxy-acetylene
oxygen
pressure gauge
railroad construction
railroad tracks
rails
reflective vest
regulator
safety glasses
safety gloves
safety helmet
safety vest
san francisco municipal railway
tank
track maintenance
track work
valve
welder
worker
Welder adjusting the valve of the oxygen tank (green) of an Oxy-Acetylene cutting torch.
View more photos of railroad workers replacing a Muni lightrail track section on Church street in San Francisco.
Stock photos
