Features: 1) DIN2527,DIN2576,DIN2502,DIN2631-2635,DIN2642,DIN2573, DIN2566 2) Material:RST37.2, ... SP44, ANSI B16.36, ANSI B16.48DIN : DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632 ...