1. 42CrMo4, C45, 304, 316, F1, F91. 2. OD5000mm, Thickness 600mm 3. Rough machining, Finished machining 1.Name: standard or nonstandard2.Material: alloy steel ,stainless steel,carbon steel3.Certificates:ISO9001-2000,GL,ABS4.Min order:1 pcs5.Payment times:T/T OR L/C6.Delivery time: 5-30days after receiving your prepayment7.Forged process:hot forged , heat treatment, testing with UT,PT,MT.8.Size: ...