25 Year OEM,ODM$OBM Special Circuit Break Manufactory In China
  jack@yuanky.com
  jack_yuanky
  jack_yuanky@hotmail.com
Fax: 0086-577-62652370
Tel: 0086-577-62655872

APPLICATION

YKD-108 program-controlled telephone switch module
The module for single rope extension telephone switch module can intercom, AC power supply