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Manhole Grade Ring & Cover Stack over a PMM

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Manhole Grade Ring & Cover Stack over a PMM

Manhole Grade Ring & Cover Stack over a PMM

Description

Manhole grade ring, cover, and frame stack mounted on the traffic reducer top of a fiberglass Packaged Metering Manhole. The stack transfers the loads to the manhole barrel walls and helps to bring the installation up to the surface grade.

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