Coronary fittings are a complete system element in the formwork (fittings) of an abandoned wreath. It consists of elements enabling one-sided and two-sided support of the ceiling on both internal and external walls (type L, C or U). They were created to eliminate additional construction work related to formwork, thus facilitating and accelerating work. Thanks to the different surface, they ensure even load distribution, and also improve the aesthetics of the wreath.