CASING PIPES CARBON STEEL SEAMLESS AND WELDED •Dimensions: 4 1/2′′–20′′ •Types: API-5CT •Grades: TN 80, TN 90, TN 95, TN 100, TN 110, TN 125, TN 140, TN 150 y CR 13. steel grades API H40, J55, K55, N80, M65, L80, C90, C95, P110, Q125