Swivel Flange Crsncs-50 Size=50, Based On The Standard=Iso 15552 (Previously Also Vdma 24652, Iso 6431, Nf E49 003.1, Uni 10290), Variants=Excellent Corrosion Protection, Corrosion Resistance Classification Crc=4 – Very High Corrosion Stress, Ambient Temperature=-40 – 150 °C