3G Welding (Korea welding master Lee Sangman) (이상만 대한민국 용접 품질 명장, 삼성중공업 용접 명장) 송원국제 ,외국인 용접공
12:42
Tutorial Pengelasan FCAW 3G Backing Ceramic
13:09
Hàn 3G cho người mới #migwelding
5:30
Aluminum Mig Welding with Ceramic Backing Tape | 3G position
6:29
3G MIG Uphill Pulse Spray vs Short Circuit
5:32
2G Welding (Korea welding master Lee Sangman) (이상만 대한민국 용접 품질 명장, 삼성중공업 용접 명장) 송원국제 ,외국인 용접공
19:28
Vietnamese Wood Production Process.Vietnamese Craftsmen Have Been Making Cutting Boards For 60 Years
28:48
Automatic Motor Production Line. Repair And Maintenance Of Steam Turbines And Large Generators
14:10