Gema angle nozzles (45°, 60°, 90°) are specialized attachments designed for OptiFlex and automatic guns to coat complex geometries, profiles, and recessed areas. These nozzles, including extensions of 150–300 mm, enhance penetration in deep cavities and facilitate coating hard-to-reach areas. Key options for optimized, high-velocity powder application include the NF21 for narrow, 30-degree patterns and the versatile NF27, per Gema Switzerland GmbH.