It was made and constructed in a basic white color that fits the interior of the house.
Folding doors are fully open until fall in spring and summer, so you can feel the cool opening.
You can feel the wind coming into the veranda more widely, so you can maintain fresh indoor
In fall and winter, air in the stuffy interior can be ventilated quickly to reduce time.

The lower runner supports the door and the upper runner acts as a guide, the damage and wear rates are low for a long period of time to be restocked with other aluminum (AL-6N01), and the polyamide insulation is the most important part of the interior.​

This is how the lower runner moves more smoothly.
So women and ades can open and close smoothly without the need for a lot of strength.