- SKTELCOM
- digital thermometer, digital pH meter, digital conductivity meter, moisture indicator.
- Address:2 / 2 / 2 Thien Phuoc, Ward 9, Tan Binh District
- OMNISYSTEM VN
- digital meter,single phase meter,three phase meter,water meter,gas meter.
- Address:36 Nguyen Hong street, Dong Da district
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