slip on flange 1.standard:ANSI /API / AWWA / DIN / BS / JIS 2.150LB 300LB 600LB 900LB 150 ... Name: carbon steel flange &forged flanges2)Materials : ASTM A105,DIN ST37.2, ASTM A182- F304 F304L, F316,F316L,F321 ... : the TUV CERT ,ISO9001 - 2000, WO , PED.7)Standard: ANSI B16.5, B16.47, MSS, SP-44, AWWA, ... the flanges are according to the ASTM, BS, DIN, JIS, EN, GB and customer's request.Ding Xiang county Wan ...