1.Grade: J55,K55,N80,P110 2.Type: API Casing Pipe 3.Thread: BTC 4.Standrad:API 5CT 5.Place ... of Origin: Liaoning, China SPECIFICATIONSOil Well Casing Pipe API 5CT Oil Casing PipeMaterials: J55, K55, N80 1, N80 Q, L80 ... Q, L80, ,C90,C95,P110,Q125,P: Plain end, N: Non upset, U: External upset, T&C: Threaded and coupled.Grades ... request and accord with the requirements of API 5CT. API Casing Pipe