Product Categories

contact us

Email: alex@fonirte.com
Phone: +86 185 6172 8600
WhatsApp: 8618561728600 WhatsApp: 8618561728600
No.1 Sunan Road, Wangyin Sub- District Office, High-Tech Zone, Jining City, Shandong, China.

Double Hung Windows 

07 Sep, 2022

Consisting of two sash that slide up and down in tracks, double hung windows are very familiar and very popular. They offer excellent ventilation that can be adjusted according to which sash is opened. Airflow, however, is limited to half of the window opening area. Single-hung windows have a fixed top sash and an operable bottom sash.