MAN Cryo references include LNG fuel gas systems for all major engine manufactures (e.g. MAN, MAN B&W, Wärtsilä, MAK, Rolls Royce, Mitsubishi) and for all types of engines: two-stroke as well as 4-stroke, all major classification societies (ABS, BV, CCS, DNV-GL, LR) and many different types of vessels.