Flange Mounting Fng-250 For Cylinders Dng, Dsbg. Size=250, Conforms To Standard=Iso 15552 (Previously Also Vdma 24652, Iso 6431, Nf E49 003.1, Uni 10290) , Corrosion Resistance Classification Crc=1 - Low Corrosion Stress, Ambient Temperature=-40 - 150 ┬░C, Product Weight=8657 G, Festo