Mark von Leffern
@mvonleffern
Design and Construction enthusiast, passionate about the built environment, energy, technology and its impact on business and society.
ID: 825869167056166912
30-01-2017 00:52:08
27 Tweet
49 Followers
234 Following
@mvonleffern
Design and Construction enthusiast, passionate about the built environment, energy, technology and its impact on business and society.
ID: 825869167056166912
30-01-2017 00:52:08
27 Tweet
49 Followers
234 Following