Mass Transfer Technology Country Company All A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Qatar Company Petroserv Limited Address 3 Al Musalla Street P.O. Box 96 Souq Al Jassim Doha / Qatar Phone +974 44 66 333 Fax +974 44 33 573 Mobile +974 55 01 255 Mail oriental@qatar.net.qa