Petroleum OIL TUBING Standard: API 5CT Grade: J55, K55, L80, N80 Connection Type ... : 4 1/2'' Petroleum OIL TUBINGapi 5ct casing pipeStandard: API 5CTGrade: J55, K55, L80, N80Connection Type: LTC, STC ... 1.Size : 1/2"----48"2.standard: API SPEC5CT,API5L,API5CT,ASTM A53,ASTM A 106,GB ... STC, EUE ect6 Packing: in bundle, non wonven cloth, API and API number, origin, or as required7 Loaded in 20" 40" ...