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In oil fields, most of the Wells are in remote areas and are difficult to manage, thus giving thieves a chance to steal crude oil. To prevent crude oil to be stolen further, although also installed at present guard against theft device, but...

When the oil pipe is in hot and cold weather, many pipe fittings of the vehicle can spontaneously ignite. If it is an oil pipe, aging and leakage will not only affect the normal operation of the vehicle, but also lead to the spontaneous com...

In the production of tubing coupling, both ends of the tubing need to be twisted and processed to make the internal thread at both ends of the coupling more uniform and the quality of the produced coupling better. In order to solve this pro...