Factory direct sales 500*600 rectangular thermal insulation manhole door
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Factory direct sales 500*600 rectangular thermal insulation manhole door
Details The entrance and exit of the manhole is used by production workers or maintenance workers when building, cleaning, and emptying tanks. The strength and sealing of manholes are the key technologies. But first, for pressurized manholes, the strength and sealing of normal pressure manholes Sealing requirements are second, followed by normal pressure_ Manhole Due to market price fluctuations, please call our factory for actual prices before placing an order! )@]{_}$(] A total of0articles Related Comments: |