API Steel Pipe Fittings 1.Grade: J55,K55,N80,L80,P110 2.OD: 2-7/8"to 13-3/8" 3.Standard: API 5CT 4.Place of Origin: China API stainlees carbon Steel Pipe Fittings ———————————————————————————————————————— Features—————————————————————————————————————————————GRADE: J55, K55, N80-1, N80-Q, L80, C90, P110We also supply premium thread products by customer’s requestSIZE: Tubing coupling from 1.9” to 4- ...