1)Seamless Steel Pipe /API casing pipe 2)Outside Dia: 114mm (4inch) - 508mm (24inch) 3)W.Thickness: 5-16mm Grade: H40,J55,P110 Seamless Steel Pipe /API casing pipe1) Outside Dia: 114mm (4inch) - 508mm (24inch)2) W.Thickness: 5-16mm3) Grade: H40,J55, K55,L80,N801,N80Q,P110,C90,Q125,T95SIZENO.(O.D x Wall Thickness)mmNO.(O.D x Wall Thickness)mm1114.3×5-88244.48 ×7-152127 ×5-139273 ×7-153139.7×6-10. ...