... C207 classB,D,E,F 4"-120" DINDIN2573,25272631,2632,2576,2543,2544,2545,2633,2634,2635 6bar,10bar,16bar,25bar ... ,F60…)Main productsforged flangeslip-on flange,welding neck flange,socket welding flange,threaded flanged,lap joint flange,blind flange,ring joint flange,long welding neck flangefree ...