1.Our license No. is API 5CT-1368.Our tubing and coupling accessories are strictly conform to API 5CT latest standard.

2.The grade P110 buttress threaded couplings are used to connect two joints of tubing or coupling accessories together.Couplings are short length of heavy wall pipe with the same threads on each end.

3.The pipe used to make a casing joint is called casing coupling.Several layers of casing are used for per oilwell,it’s depending on the depth and geology of the oilwell.After casing completion, cement cementing should be used.Unlike tubing and drill pipe, it cannot be reused.It belongs to disposable consumables.

4.We can supply kinds of different sizes,from 4-1/2” to 20”

5.Thread type:BTC,LTC,STC ,also the customization threads as per client’s request.

6.Quantity:Negotiable, according to client’s demand.

7.To keep the traceability,every product has its own inspection record in the whole process of production.If you are looking for a high quality,professional and fast delivery API 5CT  coupling supplier please contact us.We will feed back to you as soon as possible.