... flanges and so on Materials, Grades (stainless steel) Available:EN10222-5/DIN17440: 1.4301, 1.4306/1.4307, 1.4401, 1 ... F316L, SUS F321 etcMainly Flange Standards Available:1) ANSI B16.5 150LBS (300LBS, 600LBS, 900LBS,1500LBS, 2500LBS) Blind/ Slip-on/SCH ... Surface: FF, RF, LJ, TG, MF, M and R.T.J. (RJ). EN10222-5 1.4541 FLANGES