Welding test3G Plate Back Grind Test | STRUCTURAL WELDING February 16, 2021 - Leave a Comment Facebook Twitter Pinterest WeldTubeTue, February 16, 2021 3:11amURL:Embed:Today we got some structural welding for you guys! Rosendo is going to show you how he welds out a back grind test on a 3G plate! 3G back grind is a common … Facebook Twitter Pinterest