1. 42CrMo4, C45, 304, 316, F1, F91. 2. OD2000mm, length10000mm 3. Rough machining, Finished machining 1.Name:forged steel tube2.Material: carbon steel , alloy steel or stainless steel3.Certificates:ISO9001-2008,GL,ABS4.Min order:1 pcs5.Payment times:T/T OR L/C6.Delivery time: 30days after receiving your prepayment7.Forged process: hot forged N or T+Q8.Others.competitive price and best quality, ...