Aluminum alloy doors and windows of the aluminum wall thickness is better?

Aluminum alloy doors and windows of the aluminum wall thickness is better?

1.4 thickness on it

If it is aluminum alloy window, then the national standard is not less than 1.4mm, if it is aluminum alloy door, then the national standard is 2.0mm. Except for small material ah. If there are problems, please see private letter.

Aluminum alloy window national standard 1.4mm, aluminum alloy door national standard 2.0mm