A12 no respect for display in order when export dwg

[Anonymous]

I have a solid table with chairs (partially hidden under the table) but when export in dwg i cant see the table correctly
I see the complete chairs lines under it !
Is a simple problem for A12 but i can not solve.I need export only visible lines
and i cant found this simple option!
When save as dwg as is the draw the drawing loses its display order!!
Thankfully in advance for any help.