| 摘要 |
<p>Disclosed is a heat insulating door assembly with excellent structural rigidity and insulation performance. The heat insulating door assembly comprises: a door panel; and at least one door frame part to provide a door accepting part to accept at least one side of the door panel. The door frame part comprises: an insulation frame made of synthetic resins, wherein a closed inner accepting space is formed inside the insulation frame in a longitudinal direction; and a reinforcement frame made of a metal to be provided in an inner accepting space.</p> |
