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Ductile iron grooved pipe fittings Ductile iron grooved couplings FM and UL appro...
Sinodrills Coupling Sleeve Coupling sleeve thread size: R22, R25, R28, R32, R38, T38...
The main products of our company are the oil casings and oil pipelines. We not only s...
API 5CT J55/K55/N80/P110 Casing Coupling 4 1/2" to 20" Api Casing Coupling ...
Product: top quality 13 Chrome 3 1/2 eue casing /tubing coupling Material: H40.J55...
The J55 API-5CT casing pipe is a comparatively low steel grade in oil drilling. It is...
Api Casing Coupling Size 4 1 / 2-20in Thread VAM NU EU STC LTC BTC NPT ...