... ,40mm,Model C: Aluminum sheet as inside and outside cover, with EPS foam in core. Common thickness 30mm,40mm,Model D: Aluminum ... , galvanized steel sheet as inside cover,with EPS foam and/or plywood in core. Common panel thickness 30mm,40mm,Model E: Aluminum ... ,with polyurethane foam in core as isolated layer.Common panel thickness: 50mm,62mm,82mm,102mm,105mm.CKD and/or CBU refrigerator truck ...