Metal parts with dynamic and/or static load for cars, namely, metal structural parts, metal interior trim, wheel rims of metal, metal chassis, metal bodies, metal hubs for wheels, metal wheels, suspension strut domes, shock absorber towers, instrument panels in the nature of dashboards, chassis structural components in the nature of side members and longitudinal members, seat backrests, chassis sub frames, door inners in the nature of door panels, pillars in the nature of structural parts, ce...