I would like to collect a list of supply sources north of the border, obviously many items won't have a Canadian source but some stuff would be good to source here.

flux? brazing rod? silver? thin wall 4130 straight gauge? files?

When I was getting my torch set up I figured I could get a couple things like tips and hose locally, a nightmare of calling 10 different local weld shops left me just ordering online from the US. International shipping fee's and duties really start to add up.