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Corrugation 68mm x 13mm

Corrugation 76mm x 25mm

Corrugation 150mm x 50mm

Corrugation 300mm x 110mm

Corrugation 380mm x 140mm

Corrugation 200mm x 55mm

Corrugation 400mm x 150mm

Corrugation 75mm x 25mm

Corrugation 125mm x 25mm

Corrugation 68mm x 13mm

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The Test Standard of the Corrugated Metal Pipe Culvert

1. The surface examination of the corrugated metal pipe culvert: it is allowed to have some slight matrix indentation, scratch, while the indentation needs to be less than the deviation of the steel plate thickness.
2. The size of the corrugated metal pipe culvert:
The wave height, wave distance, wave overall length dimensional tolerance of the corrugated metal pipe culvert need to accord with the JS18 requirement in GB1804.
The length tolerance of the compensator in free states, when the compensator is less than or equal to 900mm, the tolerance is 3mm. When the compensator is 900mm to 3600mm, the tolerance is 6mm.
Fill the certificate of quality as the requirement.

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