FLANGES Size:DN15-DN4000 Material:Carbon steel Q235,20#, A105, A105N ,A694F70,A694F65,ETC Type: Weld-neck, Slip-on, Blind, Socket, threaded, Lap-joint, Loose, Flat, Figure-8 Blank, Orifice, etc Dimension Standards and Sizes: GOST 12820 /12821 DIN2527,2573,2576,2544,2545, 2631, 2632, 2633, 2634, 2635, 2636,2638,2641,2642 / EN1092-1 TYP01-34 ANSI B16.5 1/2”-24” CLASS 150-2500 ANSI B16.47 26”-60” ...