FORGED FLANGES SOCKET WELDING, WELDING NECK, THREADED, LAP JOINT, BLIND, SLIP ON; DIN2527, DIN2502/2503/2573/2576, DIN2565/2566, DIN2627/2628/2629, DIN2630/2631/2632/2633/2634/2635/2636/2637/2638, DIN2641/2642/2655/2656, DIN86029/86030, BS4540, BS10 STANDARRDS ANSI DIN BS MATERIAL ASTM A105, A350LF2/F5/F9/F11/F22 ETC, A182 304L, 316/316L, F321/321H, EN10272, 1.4301, 1.4306, 1.4307, 1.4404 PRESSURE: 150LBS-2500LBS SIZE 1/2"-100" and BIGER WIND POWER FLANGE FROM 3000MM-8000MM