... 160, 150LBS-2500LBS ,5K-40K and so on .Sealing surfaceFF ,RF, LJ, FM ,RTJ,RJ ,MALE ,FEMALE and so on ... DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655,IN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636, DIN2637, DIN2638, DIN2673B.S ... welding neck falnge DIN2631, 2632,2633,2634,2635 blind flange DIN 2527 PN6, PN10, PN16, PN25, PN40 threaded falnge DIN2565,2566 ...