Heavy tank
The Char 2C was one of the largest tanks ever produced. At the start of World War II, France and the Soviet Union were the only countries to have inventories of heavy tanks, such as the Char B1, T-35, and KV-1. The Matilda II was designed under the British infantry tank concept which is similar to the heavy tank having thick armor and weighing more than their other tanks. It’s usually separate because they have less firepower with their cruiser tanks (comparable to mediums) at the time having the same main armament but more machine guns. Later war examples were the German Tiger I and II, as well as the Soviet IS series. Note that "heavy" versus "medium" is more a question of tactical roles than weight; the Panther, for example, was a "medium" tank that outweighed most Allied "heavy" tanks.
Marine LNG Engine
Samsung’s Supreme was a Mark-III type LNG container ship that was the largest of its kind. The Supreme had the newest technology seen in LNG ships. She features tanks completely surrounded by double bottom hull, and a cofferdam between tanks. Each tank stores its cargo at -163 degrees Celsius. This is a standard storage temperature for LNG This is accomplished by 250 mm of insulation, and a 1.2 mm thick stainless steel membrane. Each cargo tank has submerged centrifugal pumps to unload cargo rapidly. This is the standard unloading method for LNG tanks. The maximum drought for LNG ships is typically 12 meters. This is due to harbor facilities sizes and restrictions. The most common size of LNG vessels ranges between 120,000 and 180,000 cubic meters because of ship dimensions. ("Propulsion Trends in LNG Carriers Two-stroke Engines", 2017).