UL 448-2007 pdf download.Centrifugal Stationary Pumps for Fire-Protection Service. 5 Glossary 5.1 For the purposes of this standard, the following definitions apply. 5.2 CORROSION-RESISTANT MATERIAL – A material having resistance to corrosion equivalent to or
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UL 448-2020 pdf download
UL 448-2020 pdf download.Centrifugal Stationary Pumps for Fire-Protection Service. 6 Glossary 6.1 For the purposes of this standard, the following definitions apply. 6.2 CORROSION-RESISTANT MATERIAL – A material having resistance to corrosion equivalent to or
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