An angle is a type of open and long profile that consists of two wings, the width of which can be equal or unequal. The angle between these two wings is usually 90 degrees, in which case it is represented by the English letter L. Among the advantages of using a corner, it can be mentioned that it increases the strength of the structure without increasing its weight. Types of corners according to the type of production: Fabric – Percy Types of corners in terms of appearance: equal wing – unequal wing