Qasem Al HaririEng. Qasem Al Hariri is a technical engineer at ASLAN Contracting & Transportation. From the AuthorFoundations & WallsMoving A Crew From Dense Block To Autoclaved Aerated ConcreteASLAN Contracting & TransportationLight, soft, and deceptively simple. Making sure AAC masonry placements are successful.Page 1 of 1