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The steel ring of tunnel gate
Category：Subway equipment Date：2019-07-31 15:16 Browse：
The steel ring of tunnel gate The steel ring of tunnel gate is the embedded part of the shield for waterproofing measures at the entrance and exit of the tunnel.The sealing device of the tunnel portal generally consists of embedded steel ring plate, cord rubber plate, fan-shaped turning plate, ring plate, pressing plate and supporting bolts.
