Smooth flanges (DIN 2573, DIN 2576), lap joint flanges (DIN 2641, DIN 2642), blind flanges (DIN 2527) and welding neck flanges (DIN 2631, DIN2632, DIN 2633), as well as collars (DIN 2641, DIN 2642) for PN6, PN10 and PN16 mostly are in stock in the materials ST37 2, C22-8, 1.4541 and 1.4571.