Hui Kong

Guangzhou Doppler Electronic Technologies Co., Ltd. engages in the research, development and manufacture of ultrasonic instruments & transducers (probes). Its products include PAUT Instrument, Ultrasonic Board, Probe, Scanner, Automatic System, UT Instrument, Eddy Current Instrument and Accessories. The company's products widely used in special equipment, energy & power, aerospace, oil & gas, transportation and steel & heavy industries. Guangzhou Doppler Electronic Technologies was founded on January 10, 2008 and is headquartered in Guangzhou, China.

Shandong Metoo Network Technology Co., Ltd. engages in the development and operation of games. It offers mobile terminal game products and online games. The company was founded on November 27, 2012 and is headquartered in Zaozhuang, China.