M Matt Active member Jul 29, 2010 #1 I am building a demo derby car and the rules state that I can weld the external door skins to hold them shut with 5 on 5 off welding. What does this mean?
I am building a demo derby car and the rules state that I can weld the external door skins to hold them shut with 5 on 5 off welding. What does this mean?