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Another API casing couplings-external upset end (EUE)

There are five main categories among API casing coupling series, they are API casing couplings long and short thread, buttress thread(BTC), external upset end (EUE) and non upset end (NUE). Today, our main topic would be external upset end (EUE) for seamless steel pipe and other pipes’ work.

From the list above, there is no doubt that external upset end (EUE) has very big difference from the former three types. No matter from the type, OD, size and other parameters, it is special. Under this situation, it is necessary to have a research before wholesale.