The internal structure of the bed adopts aircraft metal honeycomb structure, which is welded by multi-section rectangular tubes. The inside of the tube is provided with reinforcing ribs to increase the strength and tensile strength of the bed, increase the tensile strength and stability of the guide surface, and effectively avoid deformation of the bed

High strength, stability, tensile strength, and guaranteed no deformation for 20 years ;

The rectangular tube has a wall thickness of 10 mm and the entire body weighs 4,500 kg.