... noise and long service life. Range of application:oil industry: transfer pump for various lubrcating oil, crude oil, residual oil, heavy ... oil,pitch oil,desiel oil,gasoline etc.ship building: transfer pump for various light or heavy oilfuel oil, waster oil, ... sludge in cabin bottom, also as pressure boost pump and ballast pump.chemical industry: transfer various acid, alkali and salt solution, resin ...