The side opposite {HEAD ~ the skin} on {TAIL ~ the second grid structure} is preferably covered by a further inner skin, for example secured by casting or by an adhesive 
on
The side opposite { HEAD ~ the skin } on { TAIL ~ the second grid structure } is preferably covered by a further inner skin , for example secured by casting or by an adhesive
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH