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1.Uniform wall thickness
2.High roundness accuracy
3.Three-layer welding to ensure excellent weld performance
4.Good insulation performance
5.Strong waterproof ability
6.High impact resistance under low temperature conditions to be directly buried in frozen ground
7.30-50 years service life
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Rolled and welded steel pipe is widely required in the underground utility and construction industries, especially large diameter welded pipe which provides designers with excellent strength-to-weight characteristics.
In details, the main application of the large diameter steel pipe is as followings.
1, For liquid transport
2, Applied chemical, natural gas gas transportation
3, Used for piling pipes, construction pipes
4, Agricultural irrigation, urban construction
