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Tej thaj chaw deb Ib-theem Prepaid Meter (Wall-Mounted) DDSY1772 4G-GPRS
Cov ntsuas kev ua tau zoo ntawm cov khoom no ua tau raws li txhua qhov kev xav tau rau hluav taws xob ib-theem prepaid zog ntsuas hauv GB / T17215321-2008 (Class 1 thiab Class 2 static AC active watt-teev meters) thiab GBA T18460.3-2001 qauv.
