1, aluminum curtain wall, the open position is not less than 3.0mm, and the closed position is not less than 2.5mm；; The wall thickness of steel used shall not be less than 3.0 mm.

2. The wall thickness of aluminum profiles for doors and windows shall not be less than1.20mm; ; The measured wall thickness of visible surface of window steel should not be less than 2.5mm, that of invisible surface profile should not be less than 2.0mm, that of door steel should not be less than 2.8mm, and that of invisible surface profile should not be less than 2.5mm..

In a word, the wall thickness of profiles used for curtain walls, doors and windows must meet the standards, so as to ensure safety.