1)Spectacle flange 2)TUV certificate: ISO9001 certificate ,PED and AD2000 ... A350 ,ASTM A181, S235 JR G2, 20#, 20Mn ,16Mn, CH2.8, C22.83)Rating : ANSI 150LBS - 2500LBS DIN PN6 - PN160 ... the field of flanges and forgings .If you have inquire list ,please send to us by email .We will provide ... you with the best price . I sincerely hope to have opportunities to cooperation with ...