Great buoyancy systems for Purtugal and Indonesia Portugal and Indonesia were the most recent (1997) destination of great buoyancy systems for pipes from 508 to 600 mm internal diameter, made for dredging. esdesignweb2020-06-16T14:44:58+02:00June 22nd, 2007| Share this article! FacebookTwitterLinkedInWhatsAppPinterestEmail Related Posts Brand new products January 22nd, 2018 The new super-barrier July 23rd, 2007 Shallow water deep difficulty July 23rd, 2007 Dredging, a real boom July 22nd, 2007