... DN600Design: welding neck, slip on, blind, socket welding, threaded, lap-jointPressure: 150#, 300#, 600#,900#,1500#, 2500#Wall thickness for welding neck flange ... , type02 loose flange, type05 blind flange, type11 welding necking type12 slip on flange, type 13 threaded flangePressure: PN6, PN10, ... DN15 to DN600 Design: slip on flange DIN2573,2576,2502,2503, 2543,2545 welding neck falnge DIN2631, 2632, ...