| 摘要 |
A storm door includes first and second horizontal rail portions each having a first end and a second end and having an internal steel reinforcement portion extending substantially from the first end to the second end, and first and second vertical rail portions each having a first end and a second end and having an internal steel reinforcement portion extending substantially from the first end to the second end. The first and second horizontal rail portions and the first and second vertical rail portions are coupled together to form a substantially rectangular frame of the storm door. The first and second horizontal rail portions and the first and second vertical rail portions comprise external PVC surfaces.
|
