Astm Erw Welded Steel PipeName: Oil Steel Pipe/ERW Line PipeStandard: API 5L or OtherOil Tubing Oil Ppe Size: 2 3/8" - 4 1/2" ....Steel Grades: K55, J55, L80-1 ,N80,C90,C95, P110, T95Lengths: R1,R2,R3Connect Type: STC, LC,BC EU,NUSurface: Corrosion proofing water based paint, oiled or black/clean painted to prevent rust.Ends: Beveled, Square cut. And pipe protection cap specially for casing and tubing.Packing: Caps on two end of every pipe outer; hexagonal shape bundles wrapped with strong steel strip or customers' requests