... compressor CE, CCC, ISO9001 approved Two stage, high pressureCast iron pump, long lifeLow oil consumptionLow RPM, low noiseProfessional and heavy ... , oil lubricated, low maintainnence operation.2.Cast powerful iron pump and advanced technology of air-cooled system design for longer ... CUSA,GMPC,CQC,CCC, ISO9001,ISO14001certificates.7.Various of pump can be matched with different size of tank capacity. ...