and copper door and window enterprise,
striving to create buildings that move the world
Netherlands high-performance slim aluminum alloy door and window system
Slim: Ultra narrow frame, visible surface 70mm, aluminum alloy with special process ultra-thin 32mm, meeting the Dutch C4 highest standard;
Energy efficiency: The heat transfer coefficient of this door and window system is 0.8 W/㎡· K, which has reached the 2020 building energy efficiency standard.
Environmental protection: Multiple sealing strips can significantly improve the airtightness and water tightness of the entire window; Having a unique sound insulation structure and a tight sealing system, the sound insulation performance can reach over 45 decibels;
Complex and concise stage contradiction aesthetics: providing Gondor's functionality with the least and purest structure and perfect design.