Shenzhen City Hengtong Albert Technology Instrument Co., Ltd.   

        Japan Shin Kong, Switzerland Precisa electronic balance, electronic balance, American SETRA Taiwan Yi first electronic scale, jewelry scale, Japan TANITA Taiwan Yuheng palm scale, density meter;
        Japan's Mitutoyo, Japan, in the village of East measuring torque tools, Japan ALGOL, AIKOH, Attonic analog force gauge, SHIMPO digital force gauge, and the gauge, tension meter, rubber hardness tester;
        Elcometer Elcometer coating thickness tester, Japan SHIMPO stroboscopic tachometer, Japan SATO Misaki Sato temperature and humidity recorder,

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