Two moulds are supplied for box culverts C0 and C1, and C2, plus an extension for C3.

The moulds for box culverts is designed for the manufacture of non-prestressed concrete parts, with a wall thickness between 200 and 290mm, and is made up of an inner frame and a base, which, when assembled together, give the shape of the part to be manufactured.

A set of additional bases is supplied to allow the mass production of parts.