... ; 3 Proces: hot forging, machining; 1,name: Flexible forged shafts, heavy shafts,large shaft forging 2,materials: carbon,stainless,alloy steel ... Inspection Testing Standard: ASTM A609,EN 12680-1,SEP 1922(IN 1690-T2)Magnetic Testing Standard: ASTM A125,ISO 4986 ...