Topbright กระจกบานเลื่อนด้านนอกหน้าต่างอลูมิเนียมประสิทธิภาพพลังงานสำหรับบ้าน

This project is an 238 units apartment project in Philadelphia, U S A. We supply sliding doors, casement Windows and glass curtain walls for this project, We design new window system for this project to meet the client's need, Our design has been brought the value of easy & cost saving installation to the client. the total materials cost of the whole project is also lower down. After the installation of the apartment, the customer is very satisfied, which has laid a good foundation for the follo