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din-7516-vints参考标准资料
September 1995Cross recessed head thread cutting screwsNDimensions,requirements and testing75161CS21.060.10Supersedes November 1986 edition.Descriptors:Thread cutting screws,fasten...
D4河南福满格新概念实业有限公司企业强制性标准规范Q_HFS0006S-2023白扁豆食圆
411036S-2023器河南福满格新概念实业有限公司企业标准Q/HFS0006S-2023白扁豆食圆2023-04-29发布2023-04-29实施河南福满格新概念实业有限公司发布
中国工程建设标准化协会标准合流制污水截流井设计规程(征求意见稿)DesignspecificationforsewageinterceptingwellofcombinedsewageSystem
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