Dear Sirwe are the corporate company in Iran/Tehran , that have at least 50 - 80 names weekly , who demands China visa . we seek a best partner in China to cooperate to send us valid invitation letter.please give me price of 4 or 5 names in a letter .( 3 month valid entry single & double ). thanks & regardsHassan+98919 222 30 37delta_global2000 yahoo.com