1.Dia: 200mm-1000mm 2.Length: 3000mm-10000mm 3.Process: EAF+LF+VD (ESR furnace for optional)4.Delivery condition: Hot forged, Heat-treatment (Normalized / Annealed / Quenched / tempered), Rough machining5.Technical data: Chemical Composition, Physical Properties and Mechanical Testing according to the customer's requirement 6.Test: Ultrasonic test according to SEP 1921-84 G3 C/C 7 Manufacture: Laiwu Hengye Heavy Steel Forging CO.,Ltd.