The most common connection method for large-diameter spiral steel pipes is welding, but in some projects, threaded connections, flange connections, socket connections, and groove connections are often used.Welding, flange connectionWelding and flange connection is traditional spiral steel pipe conne

The application of large-diameter longitudinally welded pipes has become very common in people's lives, so do you know what grades the quality of large-diameter longitudinally welded pipes can be divided into? The following will introduce the specific content to you.Generally, the surface of hot-rol

There are also many processing methods for stainless steel pipe fittings. Many also belong to the category of mechanical processing, the most used are the stamping method, forging method, rolling method, rolling method, bulging method, stretching method, bending method, and combined processing metho

Before the 3PE anti-corrosion steel pipe is buried, it is necessary to clean up the surrounding environment. The measurement and release personnel need to make technical disclosures to the commanders and mechanical operators who participate in the cleaning work, and at least one line of defense pers