https://m.youtube.com/watch?v=WNvuJPX9-h8
https://m.youtube.com/watch?v=QCQ_d0NOF4g
https://m.youtube.com/watch?v=hq5aBpHX07g
All welding processes produce hazardous gases and can also produce fumes. Fumes are formed when a metal is heated above its boiling point and the vapours produced condense into very... read more →
https://www.youtube.com/watch?v=5IqrE0kPqwg
https://www.youtube.com/watch?v=BDfh8sc1sIA
https://m.youtube.com/watch?v=f1ksnjKNZMM