1. Energy saving pull and push window, absorbing the highlights of techniques of European and American energy saving windows. 2. Double ring continous seal, highly air tight and water tight. 3. Single and hollow glass could be adoped. Hollow thickness is at 6, 9, 12 mm. 4. The rigidity of the window body is very big. such door&window is safe and durable, suitbale for various high buildings. 5. The surface of profile could be dealt with through highly oxidization, fluoric-carbonic spray, electrostatic spray, and phoresic varnish etc. and be made into various colors, very beautiful, and could be painted into the color of stainless steel and imitate wood groove etc. 6. The door&window frame is clean free, maintenance free, durable, erosion resistant, aging resistant, anti-color fading, and with a life span of over 50 years. 7. Selected metal parts of good quality, which open and close freely, convenient and durable.