/All Commercial Videos Petrogonia. Roof slate 950 Views Petrogonia. Roof slate Commercial Video Client Petrogonia Date September, 2012 Date 1 September 2012 Director Apostolos Chouliaras Share: You may also like this House with Bioclimatic Design Elements – Volos / All Commercial Videos, Commercial Videos M.E.K. S.A. – LAFARGE / All Commercial Videos Motothesis – spot / All Commercial Videos, Commercial Videos