API 5CT Standard tubing Coupling Oilfield Pump Casing Spare Parts coupling price Product Description All of tubing couplings are with materials of steel grade including J55, K55, N80, N80-1,N80-Q,L80...もっと見る
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API 5CT Standard Tubing Coupling and Casing Coupling with NU and EU Types in 2-3/8" to 20" Size Range