Specialized repair station for new generation trucks, engine, differential gearbox with management. Master Akbar, installation of Exor engine on Alborz and Dongfeng, installation of gearbox with vesade zf151 and 221, in cash and installments for 12 working days, contract with companies and government bodies, complete engine repair for 7 working days in cash and installments from 0 to 100 equipment and all works such as turning etc. in cash and installments by check without guarantor