I Had been wanting to know the same factor. Low amp TIG welding may very well be the answer to only welding the roll marks. What's the perpose of copper? Regrettably, I am on travel so I can not write-up photos in the bolt. It can be MPC engraved. The https://coltm16a1forsale04678.national-wiki.com/1079466/the_basic_principles_of_gold_cup_trophy_colt_45