标题: NF EN ISO 5167-3-2003 [打印本页] 作者: prettypoet9 时间: 2014-2-28 21:39:22 标题: NF EN ISO 5167-3-2003
NF EN ISO 5167-3:2003 Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full - Part 3: Nozzles and Venturi nozzles