Who are the manufacturers of railway signal intelligent power supply screen?

1, Beijing Dinghan Technology Co., Ltd. (Floor 6, Building 3, No.3, South Fourth Ring West Road, Fengtai District, Beijing 0 1 103366)

): intelligent power boards PZGWJ- 10/380/25, PZGWJ- 15/380/25, PZGWJ-25/380/25, PZGWJ-30/380/25, pzgwj-. .....

2. Beijing Jinyu Jiaxin Technology Development Co., Ltd. (010-51570135, Floor 2, Building C, Long Sen Enterprise Incubation Park, No.8, West Ring South Road, Beijing Economic and Technological Development Zone): PMZ II (b)-25w15s. .....

3. Tianjin Signal Factory (No.022-60403806, Xunhai Road/KLOC-0, Dongli District, Tianjin)

4. Shenyang Electrical Equipment Factory 024-62022206

5.Xi 'an Electrical Equipment Factory

Too many, so I won't list them. There are a series of models according to different manufacturers, different uses and different capacities.