... : J55,K55,N80,L80,P110 2.OD: 2-7/8"to 13-3/8" 3.Standard: API 5CT 4.Place of Origin ... /2”, Casing coupling from 4-1/2” to 13-3/8”TYPE: NUE, EUE (tubing coupling), STC, LC, BTC (casing coupling ... *134.9515.637-5/8”BTC215.90*263.5215.828-5/8”STC244.48*196.8516.238-5/8”LTC244.48*254.0021 ... /4”BTC323.85*269.8828.0313-3/8”STC365.12*203.2025.6613-3/8”BTC365.12*269.8831.77 We officially ...