Tan Nguyen An Technology Co., Ltd specializes in the supply, installation, repair, maintenance and calibration of electronic scales of all kinds. In addition, we have TV recorder products such as: digital video recorder, android box, etc.Tan Nguyen An Technology Co., Ltd specializes in the supply, installation, repair, maintenance and calibration of electronic scales of all kinds. In addition, we have TV recorder products such as: digital video recorder, android box, etc.