Maide is biggest manufacturer in China for petrol station equipment. Maide have more than 300 workers. We made more than 300000pcs nozzle, 50000meters and 40000 pumps to all over the worlds. Maide is with UL certificate and ATEX certificatOur mechanical over gear meter: Advantage: Compact size, easy maintananceEady to read and perate mechanial displayHorizontally and vertically flexibility of installation optionsOGM-A-25 1"OGM-A-40 1.5"OGM-A-50 2"OGM aluminum oval gear meter with pulser output to measure diesel, gasoline on tank truck and service station