Shanghai Wujiu Automation Equipment Co., Ltd. mainly produces and sells: underspeed switch, belt slip switch, one-way pull rope switch, marine sound and light alarm, portable sound and light alarm, solenoid valve, travel switch, oil pressure buffer, Turck proximity switch, acoustic photoelectric alarm, pull rope switch, deviation switch, blockage switch, tilt switch, underspeed switch, slip switch, material level switch, tilt switch, coal blockage switch, one-way pull rope switch, belt slip switch, tear switch, two-stage deviation switch, underspeed switch, sound and light alarm, infrared thermometer, ultrasonic thickness tester, dissolution tester, tablet hardness tester, DC potentiometer, DC resistance box, DC double arm bridge, digital micro ohmmeter, AC millivolt meter, armored thermocouple, wear-resistant thermocouple, thickness gauge, vibration meter, pressure reducing instrument. The device, Pressure gauge.