(EN) A heating medium passage (30) and a cooling medium passage (32) are formed in a movable core (14) i.e. a die. A heating medium supplied from a heating temperature controller (34) via a heating medium supply line (36) and a cooling medium supplied from a cooling temperature controller (38) via a cooling medium supply line (40) respectively circulate in the heating medium passage (30) and the cooling medium passage (32). Furthermore a heating medium circulation line (54) for returning the heating medium to the heating temperature controller (34) and a cooling medium circulation line (62) for returning the cooling medium to the cooling temperature controller (38) are connected respectively to the heating medium supply line (36) and the cooling medium supply line (40).Fig 2.