DETALHESNotes on usage (1) The optimum flow of CO2 for shielding is 20~25?/min. (2) The distance between tip & base metal is to be 20~25mm. (3) Protect the weld with a screen to prevent blowholes caused by wind where the windvelocity is 2m/sec and more. (4) Thick heavy plate should be welded under proper preheating & interpass temperature. Shielding Gas 100%CO2