... conduit and for fixed, protected installation of Wiring Burglar Alarm, Public Address Systems,Intercoms, Telephone Stations, Speakers, Instrumentation, Control and other Low ... years, RG6,RG11,RG59 COAXIAL CABLE, TELEPHONE CABLE, ALARM CABLE.MICROPHONE CABLE etc.Hangzhou Lin`an Dongsheng Cable Co.,Ltd, was ...