Elster Metering Nantong Co.,Ltd is a leading manufacturer specialized in various of water meters especially for woltman meter since 1998 in China. We're OEM factory and all our meters strictly conform to ISO 4064, have complete process control and calibration systems, and with the capacity to produce 90000 pcs of water meters per month, ranged from 15mm to 600mm diameter such as single jet/multi-jet water meter, woltman water meter, volumetric water meter, ultrasonic water meter, prepaid water meter, AMR water meter, WPD water meter and electromagnetic flow meter, 60% of our products are exported to different countries all over the world.