Oxyfuel gas welding (OFW)
Schlüsselwörter
welding,
gas,
metalwork,
weld,
oxyacetylene,
combustible,
darkening,
fabricate,
filler,
flames,
glove,
helmet,
hot,
industrial,
industry,
metal,
method,
molten,
process,
skill,
steel,
technician,
tip,
torch,
work,
men at work
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