VACUUM INSULATION MATERIAL AND HEAT INSULATION HOUSING USING THE SAME

摘要

A vacuum insulation material includes: a core member having a large number of minute spaces; a cover member having an internal space in which the core member is housed, the internal pressure being decompression-sealed; and an inspection member provided between the core member and the cover member. The inspection member includes a retaining portion disposed on the core member and a hole formed in the retaining portion.