... ,F316,F316L,F316H,F317,F317L,F347H,F310S,F310H,F321,F321HSuperaustenitic stainless steel:S31254Duplex stainless steel:S31500,S31803(2205),S32304,S32205,S32760,S32750,HDRCopper Nickel ... .6MPa—42.0MPa)Technics:Hot die forging from round bar,CNC machining,Drilling and Passivating high quality Stainless steel flange, 150~1500class