... -4000mm Pressure class:150-900lb ASME/A234 WPB/WN-RF flange forged1. DN15-DN2000, 1/2"-78" 2. SLIP-ON ... , WELDING NECK, BLIND FLANGE 3. Material: A234 WPB, A234 WPC , A234 GR WP11, ... -90,GB/T13401, ASME/ANSIB16.9, DIN2605,JISB2311a. Flange spigot ductile iron pipe fitting b.Higher quality with best price. c ... Germany,New Zealand, Denmark ASME/A234 WPB/WN-RF flange forged DIN