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Deep narrow groove tungsten inert gas shielded welding process

Electric heating – Metal heating – Nonatmospheric environment at hot spot
Patent

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Delivery of welding flux in a method of submerged arc strip clad

Electric heating – Metal heating – Nonatmospheric environment at hot spot
Patent

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Device for feeding welding wire in a submerged arc welding opera

Electric heating – Metal heating – Nonatmospheric environment at hot spot
Patent

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Device for flooding a weld seam between two pipes to be welded w

Electric heating – Metal heating – Nonatmospheric environment at hot spot
Patent

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Device for hindgas coverage in tube welding

Electric heating – Metal heating – Nonatmospheric environment at hot spot
Patent

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Device for isolating a surface for welding

Electric heating – Metal heating – Nonatmospheric environment at hot spot
Reexamination Certificate

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Double chamber sliding backpurge device for gas shielded arc wel

Electric heating – Metal heating – Nonatmospheric environment at hot spot
Patent

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Dual toroidal electrodes

Electric heating – Metal heating – Nonatmospheric environment at hot spot
Patent

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Dual-gas shielding method

Electric heating – Metal heating – Nonatmospheric environment at hot spot
Patent

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