/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: irishadoreoliphant https://cdn.slidesharecdn.com/profile-photo-irishadoreoliphant-48x48.jpg?cb=1523605719 11 Years at Dihlase Consulting Engineers. 3 Years as draftsman and 8 years as a Mechanical Engineer. My next goal is to get professional registration and specialise in sustainable HVAC energy efficient designs for buildings. http://www.dihlase.co.za