HEAT-RETENTION BLOCK AND METHOD OF MANUFACTURING HEAT-RETENTION BLOCK

摘要

A heat-retention block (1) comprises a bag body (2) in which a metal foil material (25) is interposed between an inner bag body (23) and an outer bag body (24) in an integrated manner, wherein the inside of the inner bag body (23) is filled with a laminated body (3) in which a heat-insulating material (31) and a metal plate material (32) are laminated in this order from an installation surface portion (21) to an upper-surface portion (22) of the bag body (2).