Confused??? What is weld backing? Backing weld? Back weld? Fusible inserts? Retainer?

[@shreevishnu3121]

You are an outstanding TH-cam tutor with enormous knowledge. Kindly upload more videos on different phases of oil and gas piping related ❤

[@manigiri7728]

Thank you sir

[@danielodeliro2412]

Thanks

[@Rahmadhanrahmdhan]

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