... :API 5CT,API 5B Grade :J-55, K-55, N-80, L-80, P-110 Size Range:41/2"-20" OCTG PIPE ... pipeStandardsAPI 5CT, API 5B Grade J-55, K-55, N-80, L-80, P-110 Size Range41/2"-20" End FinishP/STC ... Tubing pipeStandardsAPI 5CT,API 5BGrade J-55, K-55, N-80, L-80, P-110 Size Range1.9"-41/2"End FinishP ...