API SPEC 5CT oil pipe 9 5/8" 10.03mm/40lb/ft Certificate No.: ... \Q125 LTC,STC,BTC,VAM,EUE,NUE API SPEC 5CT oil pipeAPI SPEC 5CT Certificate No.:5CT-0365 H40\J55\K55 ... For the purpose of transportation of gas,water,oill in oil&gas industry.2, API SPEC 5CT Tubing is used in ...