Ra <= 0.8 µm (30 µin.) for media wetted surfaces, according DIN 11866 H3, mechanically polished internal, Ra <= 6.3 µm (250 µin.) for media wetted surfaces, blasted internal / external
Manufacturer according to GPSR
GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG, Fritz-Müller-Straße 6–8, 74653 Ingelfingen, Baden-Württemberg, Deutschland, info@gemue.de, https://www.gemu-group.com/