Shanghai Fiju Automation Equipment Co., Ltd. main production and sales: low speed switch, belt slip switch, unidirectional pull rope switch, marine acoustic and light alarm, portable acoustic and light alarm, electromagnetic valve, travel switch, oil pressure buffer, turk proximity switch, acoustic and light alarm, pull rope switch, run away switch, block switch, tilt switch, low speed switch, slip switch, feed level switch tilt switch block coal switch unidirectional pull rope switch belt slip switch tear switch two-stage run away switch low speed switch acoustic and light alarm infrared thermometer ultrasonic thickness gauge solubility tester tablet hardness gauge DC potentiometer DC resistance box DC dual arm bridge digital micrometer AC millivolt meter, pinned thermocouple wear resistant thermocouple, thickness gauge, vibration gauge, pressure reducer, Pressure meter.