| 摘要 |
The present invention relates to an insulating frame for windows and doors with improved insulation property and solidity. In particular, the invention ensures multiple layers of insulation holes inside of the insulating frame to increase insulation as well as structural hardness while maintaining the firm integrity of the outer-frame of a metal material and PVC extruded material. The multiple layers of insulation holes formed inside the PVC extruded material have no capacity for heat conduction and block the heat conduction between the inner and outer space. A staggered fixing part formed on the outer frame hooks to a dual loop formed on the PVC extruded material. The invention can maintain the solid integrity of the PVC extruded material and outer frame. |
