Ultrasonic Water Meter, Woltman Water Meter, Ultrasonic Heat Meter manufacturer / supplier in China, offering DN15mm 1/2 Inch Household IC Smart Water Meter Prepaid Digital Plastic Brass Stainless Steel Material Water Meters with Software, DN15-40mm IP68 ISO4064 Certified OEM Horizontal Thread Connection Prepaid IC Card Water Meter, DN15 Nylon Low Power IP68 Dry Dial En 1434 Thermal Energy Water Meter and so on.