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Iron inlet for bridges with a layer of gravel, such as railway b
These inlets are designed in particular for railway bridges. They are laid in a layer of gravel between the tracks, and therefore the holes in the slats are suitably small. Two-piece: the lower part with the flange to connect the sealing layer, the upper part with the cast-iron grate that allows the execution of equal connection with a protective finish. Drainage holes provide drainage of the sealing layer. The slots in the grate being selected such that the film was optimal drainage gravel and gravel was not flushed out and it does not cause clogging of the grate. Two versions of the grate: spherical and perforated.
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