Aluminum hung window

1.Adopted European design, convenient installation; novel switch way : middle- hung. Solved the difficulty in switching small angle with common top hung and bottom hung, completely to satisfy our need of ventilation in a building. 2.Used heatproof system. Sealed insulating glass unit supported ,showing its cold proof, heatproof, and sound insulating characteristics 3.Applied for Middle or high class building, hotel, villa, plaza , etc.