jasa pasang grounding elektronik di Batam https://jual-dan-service-cctv-pabx-door.business.site/ pasang Grounding DC tahanan 0,5ohm
paging system
sound system/paging system/public address building facility
Fingerprint x105
jual dan pasang finger print Absensi maupun Door access control https://jual-dan-service-cctv-pabx-door.business.site/ Fingerprint X105