Haec probata nodularis ferrum fusile vālvula portāria ignea comprehendit specificatiōnēs 2 "-12" cum connexionibus flangiarum et sulcorum pro latiori serie ductuum igniferorum. Designum OS&Y (apertae stipitis supportum genus), facile intuitū iudicāre apertūram vālvulae. Materia ductilis ferrī, altus fortitūdinis, corrosiōnis resistentiā. Sua seriēs fabricandi scrupulōse sequitur standardes ut solida garantia praestet pro rēliabilī aquae distributione systematum ignefugorum.














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