specification of MTZ plunger (model 510): its a special element. our company is with a 20-year history of producing fuel injection equipment manufacture,specializes in developing and producting fuel injection pumps,fuel injector,couples of precision parts of fuel system (nozzle,element/plunger,delivery valve,repair kits ,rotor head,etc.)used on passenger bus,truck,tractor,agriculture & earthmoving machines,stationary & marine engine. we have advanced equipment,craft,full testing machine,very strong technical force,and we have high quality production scale,and mordernization manager. our products enjoy very good sales in USA,EUROPE,AFRICA,MIDDLE-EAST ,SOUTH-EAST ASIA and EAST ASIA,have good reputation with our clients. otherwise,have many kinds of packing,such as wax,plastic film,plastic nylon,colour box etc.meeting with different clients' needs.