1G Welding (Korea welding master Lee Sangman) (이상만 대한민국 용접 품질명장, 삼성중공업 용접 명장) 송원국제 ,외국인 용접공
ฝัง
- เผยแพร่เมื่อ 10 มิ.ย. 2024
- South Korea standard 1G welding, employment in Korea E7 Visa, Korean shipyard welding method,
Myanmar welder, Sri Lanka welder, Thailand welder, Vietnam welder, Indonesia welder, Philippines welder, Bangladesh welder
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