Before you bitch about one being 2/0 and the other being 4/0 please understand that welding cable is regulated with an industrial standard and sky high is not. Therefore sky high can market it as an "oversized 2/0" instead of calling it by its actual AWG.
Please read the following article to get the particulars of what each regulated wire size is.
en.wikipedia.org/wiki/America...
21 окт 2016