Specification: 1.Automatic school chime, Dapat .... tombol untuk mengaktifkan bel secara manual. 6.Ada lima pilihan jumlah dering. nada bisa diatur jumlah deringnya, untuk membedakan antara masuk, ....
We are company that specialist in Computer, Elektro, Telecommunications and Digital System. We are open in the year 2005 with SIUP No: 503.517 / 328 and TDP: 13155202450. We have some product....