Want to prevent cold from entering through windows in winter and improve heating efficiency. Want to block out sunlight and reduce heat in rooms with strong sunlight. 1 ~ 2 weeks. 1 ~ 4 weeks.
Want to prevent cold from entering through windows in winter and improve heating efficiency. Want to block out sunlight and reduce heat in rooms with strong sunlight. 1 ~ 2 weeks. 1 ~ 4 weeks.