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  • What needs to be done before the 3PE anti-corrosion steel pipe is buried

    What needs to be done before the 3PE anti-corrosion steel pipe is buried

    Before the 3PE anti-corrosion steel pipe is buried, it is necessary to clean up the surrounding environment first. The measuring and setting-out personnel must make technical disclosures to the commanders and mechanical operators participating in the cleaning work. At least one line of defense pe...
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  • Large-diameter steel pipe connection method and method for improving the rust resistance

    Large-diameter steel pipe connection method and method for improving the rust resistance

    Connection method of large diameter steel pipe: 1. Large-diameter steel pipe heat-shrinkable fittings: When connecting pipes, on-site welding can be used. Welding points cannot be handled at the construction site, and heat-shrinkable pipe fittings are used as supplementary seals, which shrink und...
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  • The quality process and characteristic use of large-diameter flanges

    The quality process and characteristic use of large-diameter flanges

    The large-diameter steel flange is a kind of flange, which is widely used and promoted in the machinery industry and has been well-received and favored by users. Large-diameter flanges are widely used, and the range of use is determined according to different characteristics. They are mostly used...
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  • Surface defects of seamless steel pipes and their causes

    Surface defects of seamless steel pipes and their causes

    The causes of surface defects of seamless steel pipes are intricate. There are hundreds of influencing factors listed, and sometimes there are dozens of factors for the same defect, and the occurrence of defects has a great relationship with the steel type. This is why the production of seamless ...
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  • What is the difference between fine polishing and rough polishing of stainless steel pipe fittings

    What is the difference between fine polishing and rough polishing of stainless steel pipe fittings

    Rough polishing is to roughly grind and cut stainless steel pipe fittings. Usually, this kind of automatic polishing machine uses double polishing heads for polishing. The advantages of this kind of rough polishing are high power, fast processing, and a comprehensive product that can be carried o...
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  • Stainless steel pipe welding process method

    Stainless steel pipe welding process method

    In the production of stainless steel tubes, a flat steel strip is first formed, which is then shaped into a round tube. Once formed, the pipe’s seams must be welded together. This weld greatly affects the formability of the part. Therefore, choosing the right welding technique is extremely ...
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