• PCB, GSM elevator /door Phone/ emergency telephone mian board Multi-Party Paging Broadcasting System

PCB, GSM elevator /door Phone/ emergency telephone mian board Multi-Party Paging Broadcasting System

USD $1 - $3 / Set
1 Set(Min.Order)
  • 1000 Set / Sets per Month
  • T/T L/C D/P D/A
  • 7 days