threaded

Keywords:

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JST1 Economy-Grade Gas-Sealed Threaded Casing

JST1 Economy-Grade Gas-Sealed Threaded Casing

It employs a two-stage sealing structure featuring threaded connections and shoulder interfaces

Keywords:

threaded

transition

employs

JST2/JST3 Gas-Tight Threaded Oil Casing

JST2/JST3 Gas-Tight Threaded Oil Casing

By employing a threaded design with a two-stage, dual primary sealing surface structure that creates a three-level seal

Keywords:

sealing

primary

threaded

JST4 Special Threaded Tubing

JST4 Special Threaded Tubing

By adopting a serrated thread design combined with a shoulder-to-shoulder connection method

Keywords:

tubing

connection

threaded

JST5 Gas-Tight Threaded Casing

JST5 Gas-Tight Threaded Casing

The threaded structure employs a guided-surface separation design, preventing thread galling on the guiding surfaces.

Keywords:

threaded

engagement

separation

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YAN'AN JIASHENG PETROLEUM MACHINERY CO., LTD

Address: Yan'an High-Tech Industrial Development Zone, Shaanxi Province

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