undulated sheet metal
1Countersink — A countersink is a conical hole cut into a manufactured object, or the cutter used to cut such a hole. A common usage is to allow the head of a countersunk bolt or screw, when placed in the hole, to sit flush with or below the surface of the… …
2Holden Commodore — Manufacturer Holden Also called Holden Berlina Holden Calais Production …
