I understand it.It’s for right side panel and left side panel. 长折边有两种(2273/2271)The dwg drawing you sent me now are both L=2271.But this is not a problem for bending.I just want to know the correct size. The dwg drawing you sent me does not have the punch hole for 压铆.May I study it by this latest drawing? Our idea will be the following;We want to avoid the proposal for auto ware house as much as possible.