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| QB/T 2257-1996 Household Sewing Machine, Electric Motor and Speed Governor (English Version) |
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Detail of QB/T 2257-1996
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Introduction of QB/T 2257-1996
本标准规定了家用缝纫机用电动机(以下简称“电动机”)及附属的调速器的产品分类、技术要求、试验方法、检验规则等。
本标准适用于单相串励额定功率不超过150W 的家用缝纫机用电动机及调速器，额定功率不超过180W的包缝机用电动机及调速器。手提封包机用电动机也可以参照使用。
Contents of QB/T 2257-1996