Air China Washington DC Office Washington DC City Office 8401 Greensboro Dr #250 McLean, VA 22102 USA Tel: +1-703-992-9499 Fax: +1-703-992-9489 Washington DC Airport OfficeDulles International Airport PO Box 17353 Washington DC 20041 USA Tel: +1-703-572-2040 Fax: +1-703-572-2041 Enquiries handled…
