A series of products, such as vacuum adiabatic tubes, vacuum adiabatic hoses, vacuum adiabatic valves and gas-liquid separators, have undergone a series of extremely strict technical treatments, products for transportation of liquid oxygen, liquid nitrogen, liquid hydrogen, liquid helium, LEG and LNG. Products are suitable for air separation, gas, aviation, electronics, superconducting, Chip, automatic assembly, food and beverage, pharmaceutical, medical, Biobank, rubber, new material manufacturing, chemical, steel, chemical industries, such as low-temperature equipment (such as low-temperature tank, Dewar Bottle, cold box, etc.) , scientific research.