| 摘要 |
Door frame having a groove for door and for fixing hinges, whereby additionally the frame has a ridge adjacent to the axis of the hinge along the whole length of the frame. The dimension of the ridge is suitable to accommodate the axis of the door hinge between the ridge and the groove of the door frame, the height of the ridge is at least equal to the height of the part of the door hinge protruding out of the door frame surface. |
