Rubber gaskets are used between doors to help keep indoor air conditioning and heating temperatures from hot summer and cold winter weather.

In addition, to prevent external temperatures that may come into the lower rails, close hair is installed on the lower part, completely blocking the temperature and noise that can come in from outside.

Using Aluminium (AL-6N01) material used in ships / aviation / cars, it is much stronger and more durable, so even if used for a long period of time, the damage and wear rate are low, and smooth lower runers are easy to open and close without the need for too much force.