1)Sandwich board 2)FRP panel 3)polyurethane insulated 4)stainess steel parts We can ... outside cover, plywood as inside cover, with EPS foam in core.Common panel thickness 30mm,40mm,Our ... in core.Model F: fiberglass sandwich panel ,with polyurethane foam in core as isolated layer.Common panel thickness: 50mm ... °CFront Mounted cooling system or underneath frozen unit CKD refrigerated truck body