http://t.co/LmfPNwbW5U Studying for an #airconditioning or #refrigerant #handling qualification? Check out Princ… http://t.co/cJXbaHwqLr
— Graham Stoakes MIMI (@gstoakes) October 5, 2015
http://twitter.com/gstoakes/status/651059539064786944 by gstoakes