機器
acetylene
air
black
bottle
bright
building
compressed
construction
container
cylinder
danger
energy
equipment
factory
floor
fuel
gas
gauge
green
high
industrial
industry
iron
job
labor
line
liquid
manufacture
manufacturing
mask
mechanical
metal
object
occupation
oxygen
pipe
plant
pressure
propane
regulator
safety
steel
tank
technical
technology
welder
welding
work
定額
Close-up of a metal gas cylinder with a reducer and a pressure sensor in the background industrial workshop. Close up focus view of welding equipment. Acetylene gas cylinder tank with gauge regulators manometers in the industrial fabric workshop.の素材 [FY31093778118]
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