what is gtt in gtt design?
GTT. 1  LNG as a marine fuel Membrane technologies now allow optimal use of LNG as a maritime fuel, with, in particular, a minimal loss of cargo volume. 2  Proven experience in maritime transportation and storage of LNG. GTT â a trusted partner for shipyards Qualification, design, methods of construction and selection of subcontractors: GTT is the leading advisory partner for shipyards constructing LNG carriers.