We strive to achieve constant excellence in all the production cycles and systems to ensure quality. Tostem is here to ensure development and construction get the best results with proven product quality and performance.
Withstand wind pressure that helps to keep your building safe in a variety of situations.
JIS S-1: 800 Pa
Prevent infiltration of rainwater and of other fluids into the room.
JIS W-2: 150 Pa
Maintains infiltration and exfiltration, thus preventing uncontrolled air leakage.
Insulate sound between rooms to ensure your comfortability.
JIS: 25 dB
15 - 20 Years
1 High quality security lock
2 Watertight sill with drainage devices prevents rain water
3 Easy-grip handle
4 Internal sliding insect screen
5 Easily adjustable outer-panel lock
6 Combination with fixed window without additional transom