This standard specifies the composition and compilation rules of agricultural and forestry tractor models. This standard applies to agricultural and forestry tractors (hereinafter referred to as tractors).
JB/T 9831-2014 history
2014JB/T 9831-2014 Tractors for agriculture and forestry.Code of model designations
1999JB/T 9831-1999 Tractors for agriculture and forestry.Code of model designations