PBCT46UMFR,PLASTIC FIBER, DIFFUSE REFLECTIV
PBD,按钮开关 Push Button Display Panel
PBD10000,OPTION CARD INPUT LDD VOLTMETER
PBD10100,OPTION CARD INPUT LDD VOLTMETER
PBD10102,OPTION CARD INPUT LDD VOLTMETER
PBD-120-ALE,PHASE SEQUENCE AND VOLTAGE MONIT
PBD13100,OPTION CARD INPUT LDD VOLTMETER
PBD20000,OPTION CARD INPUT LDD CURR METER
