Left to right: Heinz Tretter, owner and founder KristallTurm Germany with staffers Lydia Tan, Mark Da Costa, Bobby Rugg (owner Rugged Adventures), Jean-Philippe Tondreau and Mario Gomes. KristallTurm-North-America 0 By Donna Jacobs on October 5, 2015 Share. Twitter Facebook Google+ Pinterest LinkedIn Tumblr Email
