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Features ? 1.Hot-dip galvanizing: Rust strong, maintenance-free and replacement. 2.Best drainage: water leakage area of 83.3%, is more than double the cast iron. 3.Save investment: long-span. Heavy load than cast iron and the lowest savings in the cost of replacing stolen, then crushed. 4.High strength: strength and toughness is much higher than cast iron, can be used for port, airport and other large span and heavy load conditions. 5.Size Multi: different specifications can meet the different environments, load. Span, size and shape required
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