86-503：
Retail projects
All windows
Area: 54 square meters
Completion date: March 2017
Residential type: high-rise apartment (located on the 22nd/25th floor)
Color: Inner white RAL9010 smooth surface/Outer gray RAL7011 smooth surface

Wingreen has provided all windows for the project, including long french window on the south terrace (8 meters long), french window on the north terrace, french window on the northwest corner balcony (U-shaped), several bedroom windows and bathroom windows. Due to the large size windows and multi corner windows, there is a high requirement for window size accuracy; Located on a high-rise building with high wind pressure, there are very high requirements for window resistance and installation. Since the installation of the window has been completed for nearly 2 years, no customer complaints or feedback have been received. The first maintenance was carried out in December 2018, and the windows were in good condition with hardware in good condition, without any issues of falling or water or air leakage.