API Casing Pipe 1.Grade:J55,K55,N80,L80,P110 2.Thread:STC,LC,BC 3.Standard:API 5CT, ISO9001:2008 4.Place of Origin: China API Casing Pipe----------------------------------------------------------------------------------------------------------------------------Feature API 5CT Oil Casing PipeMaterials: J55, K55, N80 1, N80 Q, L80, ,C90,C95,P110,Q125,Type of End-finish: Plain, BTC, LTC,STCOD: from ...