• smart phone GSM /sip PCB system solution for emergency telephone mian board for highway, elevators, terminals, building Phone

smart phone GSM /sip PCB system solution for emergency telephone mian board for highway, elevators, terminals, building Phone

US$ 1 - 3 / Set
1 Set(Min. Order)
  • T/T L/C D/P D/A
  • 7 days