| Model NO.: | R25 |
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| Customization: | Available Customized Request |
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The duplex coating rock bolt adopts two corrosion-prevention measurements on the bolt surface, hot-dip galvanizing and epoxy coating which can prevent corrosion very well. It is mainly used in conditions which are inflenced by underground water such as road, railway, water conservancy project, subsea tunnel, etc. And the anti-corrosion of two methods can keep more than 100 years.
