Hellow guys, Welcome to my website, and you are watching [플랜트교육] 스테인리스 용접부 무지개색? 내부 변색? 진짜 이유 알려드립니다🔥 | TIG Welding Color Discoloration Explained. and this vIdeo is uploaded by 플랜트 김소장 at 2021-03-03T11:23:46-08:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.