Intended for the construction of enlargement sections. The solutions that KERN is able to provide for this type of work are several:

“Integrated system” in a typical section formwork, able to be converted and hydraulically enlarged with the addition of elements. “Nail form” which works independently and can be set in position and later connected to the main formwork without the need to transform it. “Trumpet formwork” designed to perform the secondary lining of a conical section that gradually enlarge.