This series tractors eguipped with international standard post PTO is edsigned based on the basic type tractor. It is a new generation tractor and has chacteristics of large power,low fuel consumption, more shift gears, good matched performance and convenient operation and maintenance. The matched engine type and opeartion tasks are as same as the basic type tractors,but its operation performance is more powerful and its applictions are wider so it is a more advanced produce in China at present