Thanks for the replyTo be honest apart from what specialisation do they use most in Canada none of your question makes sense.
I appreciate English is not your first language but even so.
What's Tig 1 and Tig 2?
thank you for your replyif it was a dangerous proffesion Health and Safety wouldn't let people do it.
It is like anything else, follow the rules/guidelines and there are no problems



