DIN 66061-9:1972-05 Household sewing-machines; testing of loss of tensile strength of needle thread by sewing

标准编号：DIN 66061-9:1972-05

英文标题：Household sewing-machines; testing of loss of tensile strength of needle thread by sewing

德文标题：Haushalt-Nähmaschinen; Prüfung des Festigkeitsabfalls des Nadelfadens durch das Nähen

发布日期：1972-05

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