NEN 3257:1974被替代
Steel Tubes, Suitable For Screwing And Sockets
出版：Nederlands Normalisatie Instituut
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基本信息
标准编号： NEN 3257:1974
发布时间：1974/12/1 0:00:00
标准类别：Standard
出版单位：Nederlands Normalisatie Instituut
标准页数：6
标准简介
Defines the sizes, the material, the state of delivery, the technical conditions of delivery and the testing of steel tubes (light, medium and heavy) and matching sockets. It applies to steel tubes, suitable to be applied with a screwthread in accordance with NEN 3258 and to the matching sockets with screwthread.
替代本标准的新标准
