... and pump, such as 1.5", 2", 3" flow meter, 2" , 2.5",3" Vane pump for Oil company, oil tank truck ... , combinated vane pump, gear pump, submersible pump, automatic nozzle, solenoid valve, etc 3.LPG dispenser components, including, LPG pump, LPG nozzle, meter ... pump, etc.5. oil tank truck parts, manhole, loading valve, pneumatic bottom valve, hose adaptor, etc. Last year, we made more than ...