Airtight joining element between an external container and a supporting element for an external rearview mirror assembly for a vehicle

摘要

A beaker-shaped, airtight joining element between an external container and a supporting element with a non-circular cross-section, of an external rearview mirror assembly for a vehicle, comprising a first airtight compartment around said supporting element, and a second cylindrical part housed in the container and having a circular cross- section coaxial to the rotational axis of container with respect to supporting element.