acetylene
air
argon
background
bottle
brass
compressed
construction
container
control
copper
cylinder
dangerous
device
dual
energy
equipment
factory
gas
gas cylinder
gauge
indicator
industrial
industry
instrument
laboratory
manometer
manufacturing
measure
measurement
metal
mig
object
oxyacetylene
oxygen
pressure
propane
regulator
safety
scale
steel
tank
technology
tool
valva
valve
weld
welder
welding
white