... tube api 1.Grade:J55,K55,N80,L80,P110 2.Type:API Tubing Pipe 3.Thread:STC,LC,BC tube api SPECIFICATIONS API Pipe, pipe fittingsAPI 5CT Oil Casing ... PipeMaterials: J55, K55, N80 1, N80 Q, L80, ,C90,C95, ... accord with the requirements of API 5CT. API 5CT Tubing PipeMaterials: J55, K55, N80 1, N80 Q, L80, ,C90,C95,P110,Q125, ...