... ANSI ,ASME,ASTM4.Material: inconel ,S32750,S32760,S31803,904L,Incoloy 925, ASTM A453- 660A,Inconel 625, Hastelly C-22, Monel ... ,washers and etc. Material: Super duplex stainless steel,Hastelloy ,Monel,Incoloy,Zirconium alloy and etc. Production standard: GB, ... material is special alloy. Material: Super duplex stainless steel,Hastelloy ,Monel,Incoloy,Zirconium alloy and etc. Production standard: GB,DIN ...