1: By opening method: Sliding doors, hinged (swing) doors, and folding doors.
2: By outer frame type: Standard single-frame doors, single-sided wall-wrapping doors, and full-frame wall-enclosing doors.
3: By profile cross-section height (frame thickness) series: Common series include 40, 45, 50, 55, 60, 65, 70, 80, 90, and 100 mm; aluminum alloy doors typically utilize the larger size series.
4: By profile cross-section shape: Solid profiles and hollow profiles (the latter being more widely used).
5: By technical type: Standard aluminum alloy doors and windows, thermal break aluminum alloy doors and windows (glue-injection or strip-insertion types), and system doors and windows.
6: By application scenario: Residential, commercial buildings, etc.
