aluzinc roofing hs code 4x8 corrugated steel sheet

  • aluzinc roofing hs code 4x8 corrugated steel sheet

  • Operation points of sand blasting rust removal for metal storage tank, aluzinc roofing hs code 4x8 corrugated steel sheet: 1. The equipment should be as close as possible to the workpiece to be processed, so as to reduce the pipeline length and pressure loss, avoid excessive pipeline wear, and facilitate the construction personnel to contact each other. 2. The jet pipe should be straight as much as possible to reduce the concentrated wear at the bend. The wear direction of the bend should be changed frequently to prolong the service life of the pipe. 3. Strictly control the process parameters.

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Weathering steel has good resistance to atmospheric corrosion. Although the initial investment cost of weathering steel is slightly higher than that of ordinary carbon steel. Compared with methods such as spraying anticorrosive coating on the surface of ordinary carbon steel, the later maintenance costs of ordinary carbon steel are weathering steel. 1.5-2 times. Therefore, aluzinc roofing hs code 4x8 corrugated steel sheet weathering steel can reduce environmental pollution and is a key promotion technology for energy saving and emission reduction. Most domestic weathering steels are painted and used, and their original intentions of no-painting and "rust prevention" have not been exerted to a greater extent.

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