Dera Sirs;
I have already obtained 4 business entyr visas from Chinese embassy in Tehran and have travelled to China 4 times.Recently I have received a business invitation letter from a Chinese company whom I would like to visit soon. I further act as a sole distributor of a couple Chinese copmpanies in Iran.As my job requires having multiple trips to China during a year I would like to know if I can posiblly apply for a one yeay valid multile visa in case I approch the embassy this time.