Shanghai Wujiu Automation Equipment Co., Ltd. mainly produces and sells:Underspeed switch, belt slip switch, one-way rope switch, marine sound and light alarmPortable sound and light alarm,Electromagnetic valve, travel switch, oil pressure buffer, Turck proximity switch, audio-visual alarm, rope switch, deviation switch, blockage switch, tilt switch, underspeed switch, slip switch, level switch tilt switch coal blockage switch one-way rope switch belt slip switch tearing switch two-stage deviation switch underspeed switch sound and light alarm infrared thermometer ultrasonic thickness gauge dissolution tester tablet hardness tester DC potential difference meter DC resistance box DC double arm bridge digital micro ohmmeter AC millivolt meter, armored thermocouple wear-resistant thermocouple, thickness gauge, vibration gauge, pressure reducer, pressure gauge.