What electric meter factories and terminals are there in Shenzhen?

Shenzhen Kelu Electronics, Longdian Electric, Huali South, Star Instruments, Aerospace Tairuijie, Chen Tai Group, Shenzhen Great Wall Science and Technology Development and many other large mainland electric meter companies have branches in Shenzhen, such as Shenzhen Star, Jiangsu Jenny and VIA. General electric meter companies have electric meter terminals.