1. Add 304 stainless steel fire strip to the opening part and the outside of the glass.
2. Add three “interpenetration expansion strip” card slots at the opening part of the fan.
3. The application of these two technologies, together with the corresponding fire materials and measures, which guaranteed the national standard of fire resistance of “MD82 fire window” greater than 1 hour.

2.Expansion strips and fire insulation strips inside of the fire proof strips.

3.The stainless steel fire insulation strips can bear 1400 °C， which greatly strengths the fire proof property of the whole.

1. Three expansion strips’ rabbets are added onto the opening sash.
2. It has changed the shortcomings of traditional expansion strip easy to roll edge and fall off.
3. It will be easy to maintain. And will prevent leakage on installation and guarantee the quality and performance.
4. No need to insert expansion strips during manufacturing casement window. Realized a multi – purpose.

1. Four “insert type expansion strip” card slots.
2. 10mm*3 and 15mm*1 fire expansion strip can be inserted.
3. In case of fire, expansion can fill the two Chambers of the opening part. Which will completely isolate smoke and harmful gases from entering the room.

2.The movable sash is outward, which not only provides better air and water tightness, but convenience for the screen door-installation indoors.

3.Convenient installation process: The sash is welded, and the frame as well as vertical mullion are screw-fixed, which simplifies the process of transporting and final installation.

4.Without the need for being jointed, inowa can achieve the design for 5m*3m doors, and a single sash can bear the weight up to 150kg. Its concise beauty makes inowa a perfect choice for living room doors, balcony doors and partition doors in modern buildings.