... resident unit, passing through the pipeline.FEATURESAdopt volumetric rotary piston principle of measurement with conformity to ISO 4064 class C,D High ... of high-quality material to ensure a stable characteristic (The LXHG is dry type.The LXHY is Liguid sealed register).WORKING ... Produced(Previous Year) Water Meter, Water Meter Parts Water Meter 1,800,000 Sets Per Year Water Meter Parts 3,600,000 Sets ...