I understand the Oregon PowerMatch bar codes like 320dd176 where you have the length, gauge, nose size, and mount. I am trying to figure out what the echo bar numbers mean, esp in terms of if the gauge is in there. I do know that oregon bar 320DD176 is actually echo part 32DOPS3805 and therefore a 32 inch .050 3/8 with a d176 mount. The echo bars in question are 36D0PS3816 and 360381601. They might be the same bar, can't tell. My guess is that the first of the two numbers is the new number for the same bar. Any understand echo bar lingo?