Shenzhen Xinglong Technology Co., Ltd. (stock code: 830924) was established in 2004. It is a national key high-tech enterprise integrating R&D, production and sales specializing in new energy and smart substation testing (Certificate No.: GR201844202377 ).The company began to develop three-phase program-controlled standard power source in 2004. For the first time, the waveform fitting degree h…