... of End-Finish:STC,LTC,BTCOperative Standard:API Spec 5CTGrade:J55,K55,M65,N80-1,N80Q,L80-1,L80-9Cr, L80 ... 10204/3.1BSpecificationOperative Standard & Grade:Operative Standard:API Spec 5CTGrade:J55,K55,M65,N80-1,N80Q,L80-1,L80-9Cr, L80 ... ,P110USAGE:oil exploitation,Offshore Oil Field API 5CT Oil Casing Pipe Outer DiameterweightGradeThreadLength inmmkg/mlb/ft 4 1/2"114.314 ...