Introducing examples of manholes installed in pedestrian emergency lanes on highways!
We would like to introduce a case where our nylon coating technology was adopted for manholes used in highway tunnels. There was consideration to use only galvanized corrugated steel plates as manhole covers, but there was a possibility of corrosion due to the humidity inside the tunnel and the influence of de-icing agents during winter. Therefore, to provide stronger corrosion resistance, nylon coating was applied over the zinc plating. 【Case Overview】 ■Part Name: Manhole for Highway Tunnel ■Issue: Corrosion due to humidity inside the tunnel and the influence of de-icing agents during winter ■Construction Details: Nylon coating applied over zinc plating ■Effect: Allows for double corrosion protection by covering the plating layer *For more details, please download the PDF or feel free to contact us.
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Maruei Co., Ltd. develops its business with four pillars: energy business, comfortable living proposal business, agriculture business, and self-support business, supporting and proposing a safer and more comfortable life. ▼ Gas Lomp Pipe Business HP https://energy.maruei-gas.co.jp/gaslon/feature/





