Place of Origin:Hebei China (Mainland) Brand Name:longway Model Number:API,API 5DP,NC serise Type:Drill Pipe Machine Type: Drilling Equipment,Drilling Tool Certification: API Material: Carbon Steel Processing Type:Forging,Seamless steel pipe Use: Well Drilling Length:R1~R3 Thickness:7.11 - 12.7 mm Section Shape: Round Outer Diameter:60.3 - 139.7 mm Packaging Detail:MARKING, BUNDLING; THREAD PROTECORS INSTALLED ON BOX AND PIN END Delivery Detail:20 days