NEN 3257:1974被替代
Steel Tubes, Suitable For Screwing And Sockets
出版：Nederlands Normalisatie Instituut
專家解讀視頻
基本信息
標準編號： NEN 3257:1974
發布時間：1974/12/1 0:00:00
標準類別：Standard
出版單位：Nederlands Normalisatie Instituut
標準頁數：6
標準簡介
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.
替代本標準的新標準
