3G Welding (Korea welding master Lee Sangman) (이상만 대한민국 용접 품질 명장, 삼성중공업 용접 명장) 송원국제 ,외국인 용접공
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12 conseils de soudage pour les débutants | Trucs et astuces pour le soudage à l’arc
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Automatic Motor Production Line. Repair And Maintenance Of Steam Turbines And Large Generators
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3G MIG Uphill Pulse Spray vs Short Circuit
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Aluminum Mig Welding with Ceramic Backing Tape | 3G position
19:41
Most Satisfying Factory Production Processes And Heavy-Duty Factory Machines!
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Tutorial Pengelasan FCAW 3G Backing Ceramic
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2G Welding (Korea welding master Lee Sangman) (이상만 대한민국 용접 품질 명장, 삼성중공업 용접 명장) 송원국제 ,외국인 용접공
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