... molded overall, or bakelite with glass window (optional); Meter base Aluminium, steel, bakelite etc; Meter terminal block is made of ... jewel, magnetic thrust.5. The die-casing frame is alloy aluminium, molding with excellent mechanical strength, stable structure;6. Voltage ... specifications,we can make according to your special requirements. DIN RAIL KWH METER,Din rail watt-hour meter,watt-hour meter