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A man is training to be a welder and another person is in charge of the examination. Welder are assembling the workpiece by Tungsten Inert Gas Welding process (TIG).
Welder is welding Tungsten Inert Gas welding, TIG weld for making new stainless flexible hose in manufacturer workshop / TIG welding torch
Detail of a window frame with triple glazing. The space between panes is filled with an inert gas, usually argon or krypton
Noble gases, chemically related elements of group 18 in the periodic table. Helium, neon, argon, krypton, xenon, radon, and oganesson. Also known as the inert gases and aerogens. Illustration. Vector
Welder performing Tungsten Inert Gas welding process (TIG) on stainless steel. TIG welding uses the heat generated by an electric arc struck between a non-consumable tungsten electrode and the work

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Recycling at a glance: Compost heap, with remains of vegetable and flower garden, beginning to decompose in autumn on a farm in northern IllinoisImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/recycling-glance-compost-heap-remains-vegetable-234318673">Image used under license from Freestock.com</a>
Pile of gray bricks at site of street repairImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/pile-gray-bricks-site-street-repair-37497715">Image used under license from Freestock.com</a>
Soccer net on grassImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/soccer-net-grass-30750229">Image used under license from Freestock.com</a>
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