In July 2005, the company passed ISO9001-2000 international quality system attestation and effectively controlled the quality management system integrated with product research, production and sales together. The fine quality appeals are carried out in every link of production flow and the overall upgrading is implemented in product quality. Up to now, the company has formed five product families of SN2002;SN2003;SN2004-A;SN2004-B;SN2005 and among which the three fuel injection pump test stands of SN2004-A;SN2004-B;SN2005 have adopted the design of humanity and friendly environment, had its own intellectual property right and the various indexes not only filled up the domestic blanks but also reached the internationally advanced standard. In 2004, the upstart of SN2005 digital readout automatic fuel injection pump test stand was shaking the technology of the industry like a storm which represents the integration of the research, development and manufacturing of Chinese made fuel injection pump test stand with the world advanced level in a completer way. Sanneng Meters established complete after-sale service system and provided strong technology and training support. "One year warranty and Whole life maintenance" deprived the customers of later worries. The measuring units are made up of precision cylinder and high precision grating ruler, inside the cylinder a tappet with high precision is fixed and between the tappet and the cylinder, sealing ring from Japan is used. When the diesel is sprayed into the cylinder through the injection pump the pressure inside the cylinder is increased and the tappet does the up and down movement under this pressure and bring the grating ruler move at the same time, then the grating ruler will input the moving distance into the computer and the computer calculates the corresponding injection amount, then displays the results on the LCD screen.