General window frame frame feeding and two -way flat -open window of opening

The utility model provides a general window frame frame feeding and two -way flat -open window of opening, relate to field of doors, the two -way flat -open window of opening includes a window sash frame frame, the 2nd window sash frame frame and general window frame frame feeding, this general window frame frame feeding includes first frame, the second frame, link and middle auxiliary material structure, one side fixed connection that link and second frame are passed through to one side of first frame is connected, the switching -over draw -in groove has on the second frame, middle auxiliarymaterial structure detachably installs in the switching -over draw -in groove. First frame has two first connection faces of relative setting, and fixed a plurality of first connections arch that is provided with is gone up to every first connection face. The face is connected to two seconds that the second frame has a relative setting, and every second is connected the face and is gone up and fixedly be provided with a p