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Our History In 2012, Ulonglucky be found and start produced a small steel ball for smart meter and ball valves. In 2013, Ulonglucky researched & developed own forging machines 2 sets to start produced the brass body for multi-jet type and smart type meter; In 2014, Ulonglucky own assemble and test the dry type and wet type multi-jet and single-jet water meter, annual income was over CNY 30 millions in this year. From 2015 to 2021, Ulonglucky have been developed the volumetric type rotary piston water meter, NB-Iot smart water meter, Ultrasonic water... [Details] |