LNG tanker insulation work

LNG tanker is a vessel which specializes in carrying Liquefied Natural Gas. Tank types are independent ball shape, membrane, independent square shape, independent circular cylinder shape etc. They have four to around ten tanks in line in the tank and many of upper parts of it are above the deck, and in order to protect -160 degrees centigrade of LNG from outer temperature, installation work of insulation material are performed.
To fix insulation material used for this cooling work, studs for low temperature use are adopted.