Smart water meter, prepaid water meter.
Water meter, heat meter, electric valve, thermostat.
Water activity meter, resisitance thermometer, thermocouple thermometer, dew point meter, temperature and humidity meter, temperature calibrator, vibration meter, sound level meter, surface roughness tester, gloss meter, reflectance meter, window tint meter, coating thickness gauge, ultrasonic thickness gauge, ultrasonic leakage detector, ultrasonic flaw detector, whiteness meter, stroboscope, tachometer, lux meter, hardness tester, digital force gauge, tension tester, color meter, anemometer and etc..
Ductile iron ingots, ductile cast iron pipe fittings(dn50 1200), fittings accessories such as  coupling and flange adaptor, dismantling joint, saddle, repair clamp, strainer and  valves, water meter, fire hydrants, grooved pipe fittings.Fob or cif, l/c or tt
