... bolts,screws,nuts,washers and etc. Material: Super duplex stainless steel,Hastelloy ,Monel,Incoloy,Zirconium alloy and etc. Production standard ... ’ ranges: shaft part :weight is ≤80000kg,diameter is ≤3m,length is≤12m; Ringlike part: diameter is ≤6m. these ... ,which material is special alloy. Material: Super duplex stainless steel,Hastelloy ,Monel,Incoloy,Zirconium alloy and etc. Production standard ...