| 摘要 |
<p>A door frame structure may comprise: an internal panel; an external panel mounted in an outer side of the internal panel of a door and coupled to the internal panel; and a channel frame arranged between the internal panel and the external panel and having a channel which guides movement of glass mounted on the door. As the door frame structure does not need a separate reinforcing plate, material costs of the door frame structure can be reduced.</p> |
