Because exists the obligation of the specification approval per member of the clause compromise for arbitration ritual, to senses of art. 1341, co. 2, cod. Civ., Not enough that one of the contractors RedISposta the whole content of the contract in way that the other part not can that you accept it or refuse it in its wholeness without being able to compete at its training, but it is also necessary that the scheme is state predisposed, and le conditions general are stated fixed, serve ad a series indefinite series of ratios, so much from point sight substantial (because packaged from a contractor that it expresses at at Titima contractual to the address of one plurality undifferentiated of subjects), as much as from point of sight formal (where, ie, predetermined in the content a half modules or formulars usable in series).