Keycom has done extensive research into the technology of microwave and electromagnetic wave transmission and harmonization with heat insulation methods, and has developed superconducting cables, super low temperature coaxial cables for various applications, millimeterwave dielectric material waveguides, and systems utilizing aforementioned products. Our superconduction coxial cable for cryogenic and strong electromagnetic field, is recognized by research institutions all over the world. It is highly effective at thermal gradient below 4K.