Seamless Casing Pipe 1.Grade: J55,K55,N80,L80,P110 2.Thread:BTC, LTC,STC 3.Standard: API 5CT, ISO 4.Place of Origin ... -95, P-110, Q-125OD: from 4 -1/2" to 13-3/8”Length: R1, R2, R3------------------------------------------------------------------------------------------------------------------------Specification API Oil pipe, Casing pipeTypeLabel ...