Sealing waterproof manhole covers and frames to ensure facilities under the manhole covers are protected from contamination_Waterproof manhole covers and frames、Seal manhole covers and frames、environment 、infrastructure、civilengineering
2023-12-04
Every batch of composite manhole covers and frames we deliver to our customers will undergo waterproofing and pressure testing.Waterproof test: BETTER COVER composite manhole cover and frame adopt a sealed structure. Even if a flood occurs and the manhole cover is submerged in water, our sealed manhole cover can ensure that water will not penetrate.Effectively protect facilities under manhole covers from contamination！
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