Doors and windows protect the safety of the room. They need to experience wind, sun and rain for a long time, so they have high requirements for process quality, and the quality is mainly reflected in whether the production process is fine.

High quality aluminum alloy doors and windows have fine processing, smooth tangent, accurate angle and exquisite installation. There will be no obvious gap in the splicing process, good sealing performance and smooth switching. The unqualified inferior doors and windows are poorly processed, and the positions such as door frame corners cannot be spliced smoothly. Sometimes there are even large gaps, which has hidden dangers of sealing. Not only does it leak air and rain, but also it is easy to crack and scrape off the glass in case of strong wind and excessive external force.

KDS doors and windows follow the Oriental aesthetic art of Chinese doors and windows, and integrate the ingenuity of German system doors and windows. It has a professional R & D and production team, technical equipment, quality inspection system, high-precision CNC machining center, fully automatic spraying equipment, fully automatic glass hollow line, excellent measuring instruments, etc. each product has been manufactured through 128 processes, striving to improve every detail and ensure that each product leaves the factory without defects and faults.

The German system window pin glue injection process is adopted for the connection of frame and fan group angles and mullions to ensure the structural strength and stability of doors and windows. It has been comprehensively improved in terms of air tightness, water tightness, sound insulation and heat insulation. More than 100 patented technologies have achieved the best quality of doors and windows.