1. Reasonable structure, no sweat and low evaporation rate. The company in the introduction of high vacuum multi-layer insulation vessel manufacturing technology, on the basis of continuous optimization of design and manufacturing process, forming a unique vacuum tube sealing technology. 2. The structure design is unique and reasonable, using the reasonable compensation structure, the performance is stable, the movement is reliable. The balance strength design is adopted in the insulation support of the end of the pipeline, which ensures the double reliability of the insulation and strength.