Introduced a Central device in closing a window comprising a base fixed on a side of a First sheet and a Pivoting Element provided with an element free movementAnd a contracierre Curved Duct.

摘要

Introduced a Central device in closing a window comprising a base fixed on a side of a First sheet and a Pivoting Element provided with an element free movementA Curved and gutters against closure with complementary with the curved Element, fixed to a Second sheet of the external window.