... Material: Super duplex stainless steel,Hastelloy ,Monel,Incoloy,Zirconium alloy and etc. Production standard: GB,DIN,ANSI/AMSE,ISO ... etc ,which material is special alloy. Material: Super duplex stainless steel,Hastelloy ,Monel,Incoloy,Zirconium alloy and etc. Production standard: ... GB,DIN,ANSI/AMSE,ISO,BS Special alloy products are widely ...