LIGHTWEIGHT EMBEDDING MATERIAL, LIGHTWEIGHT EMBEDDING UNIT AND ITS FORMATION DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a lightweight embedding material, a lightweight embedding material unit and a formation device of the lightweight embedding material capable of being economically manufactured by one molding type. SOLUTION: The lightweight embedding material is so constituted that a fitting projection 7 and a fitting recessed section 8 are formed in a joint surface 6 of two molding members 2 and 3 having the same shape, the fitting projection 7 of the other molding member 3 is fitted to the fitting recessed section 8 of one molding member 2 and that the fitting projection 7 of one molding member 2 is fitted to the fitting recessed section 8 of the other molding member 3 to connect them together as a unit. COPYRIGHT: (C)2006,JPO&NCIPI