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Corrosion rate of Shanghai standard anchor bolt
The corrosion rate of anchor bolts in Shanghai can be divided into six grades.

1, not afraid of corrosion: the corrosion rate is 0. 1 to 1.0mm/ year.

2. Not afraid of corrosion: the corrosion rate is lower than 0.00 1mm/ year.

3. Not afraid of corrosion: the corrosion rate is 0.00 1 to 0.0 1mm/ year.

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