The internal structure of the bed adopts the aircraft metal honeycomb structure, which is welded by a number of rectangular tubes. The tube is equipped with stiffeners to increase the strength and tensile strength of the bed.
The application of stress relief annealing technology, plus the strength and tensile strength of the bed, can effectively avoid the deformation of the bed. High strength, stability, tensile property, and no deformation after 20 years of use.