Big and Small Head Forge Piece 1.Standard:ANSI,ASTM,ASME,DIN,GB 2.Material:Alloy Certification:ISO9001:2008 Big and Small Head Forge Piece1.Standard:ANSI,ASTM,ASME ,DIN,GB2.Material: ZG14Cr20Ni32Nb3.Specifications: φ500/φ350 or as customers' requirement 4.Process:centrifugal casting5.Quality:can work under presure for long time,advanced testing equipment to ensure thye quality,6.Packing:wrapped ...