售后服务
线上技术支持, 现场安装, 现场指导, 现场检测, 免费备件, 退换货, Other, NONE
Surface treatment
Powder coated, Anodized,Electrophoresis
Glass
Double glazing normally
Fly screen
As per cusomer requirement
Hardware
Domestic brand with high quality or ROTO from Germany
Sealing
EPDM,high sealing performance
Soundpoof
Can reduce the noise greatly
Theftproof
Multi lock point system
Use area
Residence,office building,etc.