General Vehicle Model Company Code Name Vehicle Type Code Main Specifications Code Product Serial No. Code from company Company Code Name HFC---- - represents JAC motor Vehicle Type Code 1---Cargo truck 2---Off-road vehicle 3---Dumper 4---Tractor 5---Special purpose vehicle 6---Passenger car 7---Sedan 9---Semitrailer Main Specifications Code 25---represents the maximum gross weight is 25 tons. Product serial No. 1---Product development serial No. 1 st change 2 nd development Code from company K---Diesel R1---King cabin For example HFC3251KR1 represents JAC vehicle with king cab, 25 tons maximum gross weight, the first change.