This standard specifies the specifications, basic parameters, main dimensions, maximum load and corresponding air pressure and pattern classification of agricultural tires. This standard applies to pneumatic tires for agricultural tractors and agricultural and forestry machinery.
GB/T 2979-1999 history
2017GB/T 2979-2017 Size designation, dimensions, inflation pressure and load capacity for agricultural tyres
2008GB/T 2979-2008 Agricultural Tire Specifications, Dimensions, Air Pressures and Loads