... VISA 2) WORKING VISA 3) GUARANTEED,HIGH-SPEED. If you wish to come to China for business travel, it is required that an ... from the authorized government organization be provided at the time of application in Chinese embassies /consulates in your country ... Invitation Letter:Document requirement: passport copy, visa record copy,Processing time: about 7-10 working daysMajor country: Iraq, Iran,Pakistan, ...