DIN EN ISO 17769-1-2012 液体泵和安装.通用术语,定义,数量,文字符号和单位.第1部分:液体泵(ISO 17769-1-2012).三种语言版本EN ISO 17769-1-2012
Liquid pumps and installation - General terms, definitions, quantities, letter symbols and units - Part 1: Liquid pumps (ISO 17769-1:2012); Trilingual version EN ISO 17769-1:2012