So why do some gas stations use inner cap SMC manhole covers?
Improve the sealing performance of the manhole cover to prevent rainwater leakage.
Protect the safety and environmental sanitation of the equipment in the well, and prevent garbage, rain, silt and sand from entering the well and destroying the equipment.
Gas station manhole covers are not all double-layered. If the equipment in the well needs safety protection, a double-layer manhole cover will be chosen. If there is no need to protect the equipment in the well, a single-cover manhole cover will be fine.
the manhole cover must have anti-static effect, which is also one of the prerequisites for installation in the gas station.
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