| 摘要 |
PURPOSE:To provide a mold for molding a resin product not requiring the much quantity of heat for heating and easy to produce. CONSTITUTION:In a mold for molding a resin product, a heating pipe 3 is embedded in a mold material made of concrete in the vicinity of the surface layer thereof and both ends 3a, 3a of the heating pipe 3 are opened to the side surfaces 2c, 2c of the mold material 2. |
