... ISO9001,14001,IEC 4)OEM DD226 Single-phase Long Life Active KWH Meterwww.cncelegroup.comGeneralThe DD226 type ... single-phase long life watt-hour meter is a kind of ... and overseas induction meter new techniques and use long life techniques.Function and features2.1 The frame ... bearing;2.4 It also has small abrasion, long life and small error change. All kind of ...