1. Assembly parts, the first part and the second part, respectively, have at least two alliance zones, each of which has two extremes at the bow edge. The alliance zone consists of a guide surface. Ivo and procedures.

摘要

Assembly comprising a First piece and a Second piece with constructive areas of Union Flat and smoothWith at least two sections of Union which have an edge in respective arcuate shape with two ends, and where the Union sections comprise a Guide Surface; device; and Procedure.