BKG is a leading manufacturer of chrome plated corrugated rolls, including corrugated sheet metal, corrugated metal pipe, corrugated sheets, corrugated cardboard, and corrugated drums. The corrugated roller may be used to direct a fluid, such as molten metal through a nozzle. Corrugated rollers are round, convex or concave, with natural or otherwise artificially applied contours on the surface to provide traction in various operating conditions.