1 according to the open means can be divided into: fixed window, hanging on the window, hanging in the window, hanging under the window, establish turn, flat open doors and Windows, window pulley window casement Windows, pulley, under flat open doors and Windows, sliding door window, close the window, folding door, on a swing door, folding door, sliding door, push and pull in the side door.
2. According to the performance can be divided into: regular doors and Windows, soundproofing Windows and doors, insulation doors and Windows.
3. According to the application area is divided into: the doors and Windows, outside doors and Windows.
4 according to the classification of brand: Germany xin 'window of model steel door, doors and Windows, carter, success, doors and Windows, conch Windows and doors, Wu Zhitao doors and Windows, good jia xi doors and Windows.
5 classified by manufacturer: Beijing family doors and Windows, the sea Windows and doors, ace the doors and Windows, best doors and Windows, and doors and Windows, emperor hon gloria doors and Windows, etc.
Of window of model steel door is polyvinyl chloride (UPVC) resin as the main raw material, plus a proportion of stabilizers, colorants, fillers, uv absorber, etc., by extrusion profiles, and then through the way of cutting, welding or bolt connection made door window frame, connected with the sealing strip, tops, hardware, etc., at the same time to enhance the rigidity of the material, more than a certain length of profiles within the cavity need add steel lining (reinforced), made this portal window, called a window of model steel door.