PURPOSE: To provide an extruded product capable of facilitating the evacuation and free from inclusion of air by sealing the space between a container and an extrusion stem and the space between the container and dies to evacuate the air in the container.

CONSTITUTION: A seal block 40 is closed by the action of a cylinder of a vacuum suction equipment 60, and the space between an extrusion stem 14 and a container 1 is sealed. When a billet 13 is abutted on a die 3, the pressure is increased, and solenoid valves 9,46 are excited to communicate a container 1 with a vacuum tank 2 to achieve the vacuum suction. Around the time when the billet 13 on the extrusion stem 14 side is brought into close contact with the container 1, the air in an evacuation space 31 is sucked from the die 3 side, passed through a clearance 6 and an evacuation hole 7 and introduced to the solenoid valve 9. On the other hand, the sealed air on the extrusion stem 14 side is passed through an evacuation hole 45 provided in a part of a two-split seal block 40, and sucked and discharged into the vacuum tank 20 through the switching valve 46 and the solenoid valve 9 on the piping 8.