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square c250 cover and frame
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Ductile Iron Square Art Manhole Cover Size 700*865*100mm Cover Origin and Development Foreign Origin: In Europe at the end of the 20th century, some ...
2025-07-18 00:31:35
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Square Ductile Iron Manhole Cover C250 Load-Bearing Grade 800×800mm Performance characteristics High strength: tensile strength ≥420MPa, yield ...
2025-07-18 00:31:35
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... drainage systems, mainly used for overflow control in rainwater or sewage systems. It is made of sturdy and durable cast iron material, with a ...
2025-07-18 00:31:35
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Double Hinge And Double Closing Ductile Iron Manhole Cover Production information: Durable and Quality Materials: Our 850x850 D400 double hinged, ...
2025-07-18 00:31:35
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... in municipal drainage systems, mainly used for overflow control in rainwater or sewage systems. It is made of sturdy and durable cast iron ...
2025-07-18 00:31:35
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