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TCVN 5137-2009 Time and frequency measurements Terms and definitions《时间和频率测量 术语和定义》.pdf 12

TCVN 5137-2009 Time and frequency measurements Terms and definitions《时间和频率测量 术语和定义》.pdfTCVN 5137-2009 Time and frequency measurements Terms and definitions《时间和频率测量 术语和定义》.pdf

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TCVN 4683-2-2008 ISO general purpose metric screw threads Tolerances Part 2 Limits of sizes for general purpose external and internal screw threads Medium quality《ISO一般用途米制螺纹 公差 第2.pdf 9

TCVN 4683-2-2008 ISO general purpose metric screw threads Tolerances Part 2 Limits of sizes for general purpose external and internal screw threads Medium quality《ISO一般用途米制螺纹 公差 第2.pdfTCVN 4683-2-2008 ISO general purpose metric screw threads Tolerances Part 2 Limits of sizes for general purpose external and internal screw threads Medium quality《ISO一般用途米制螺纹 公差 第2.pdf

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TCVN 4683-1-2008 ISO general purpose metric screw threads Tolerances Part 1 Principles and basic data《ISO一般用途米制螺纹 公差 第1部分 原则和基本数据》.pdf 22

TCVN 4683-1-2008 ISO general purpose metric screw threads Tolerances Part 1 Principles and basic data《ISO一般用途米制螺纹 公差 第1部分 原则和基本数据》.pdfTCVN 4683-1-2008 ISO general purpose metric screw threads Tolerances Part 1 Principles and basic data《ISO一般用途米制螺纹 公差 第1部分 原则和基本数据》.pdf

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TCVN 4681-1989 Pipe cylindical threads《圆柱管螺纹》.pdf 13

TCVN 4681-1989 Pipe cylindical threads《圆柱管螺纹》.pdfTCVN 4681-1989 Pipe cylindical threads《圆柱管螺纹》.pdf

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TCVN 4680-1989 Agricaltural tractor Nomenclature of quality indices《农业拖拉机 质量指标术语》.pdf 6

TCVN 4680-1989 Agricaltural tractor Nomenclature of quality indices《农业拖拉机 质量指标术语》.pdfTCVN 4680-1989 Agricaltural tractor Nomenclature of quality indices《农业拖拉机 质量指标术语》.pdf

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TCVN 4678-1989 Metal working machines Nomenclature of quality index《金属加工机械 质量指标术语》.pdf 8

TCVN 4678-1989 Metal working machines Nomenclature of quality index《金属加工机械 质量指标术语》.pdfTCVN 4678-1989 Metal working machines Nomenclature of quality index《金属加工机械 质量指标术语》.pdf

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TCVN 4177-1985 System for design documentation Instructions for marking and branding of articles on technical drawings《设计文件的系统 技术图纸上文献的标识和品牌的说明》.pdf 5

TCVN 4177-1985 System for design documentation Instructions for marking and branding of articles on technical drawings《设计文件的系统 技术图纸上文献的标识和品牌的说明》.pdfTCVN 4177-1985 System for design documentation Instructions for marking and branding of articles on technical drawings《设计文件的系统 技术图纸上文献的标识和品牌的说明》.pdf

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TCVN 4176-1985 System for design documentation Documents for operation and maintenance of civil technical articles《设计文件的系统 土木技术文献的操作和维护用文件》.pdf 10

TCVN 4176-1985 System for design documentation Documents for operation and maintenance of civil technical articles《设计文件的系统 土木技术文献的操作和维护用文件》.pdfTCVN 4176-1985 System for design documentation Documents for operation and maintenance of civil technical articles《设计文件的系统 土木技术文献的操作和维护用文件》.pdf

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TCVN 4175-1-2008 Rolling bearings Tolerances Part 1 Terms and definitions《滚动轴承 公差 第1部分 术语和定义》.pdf 39

TCVN 4175-1-2008 Rolling bearings Tolerances Part 1 Terms and definitions《滚动轴承 公差 第1部分 术语和定义》.pdfTCVN 4175-1-2008 Rolling bearings Tolerances Part 1 Terms and definitions《滚动轴承 公差 第1部分 术语和定义》.pdf

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TCVN 4173-2008 Rolling bearings Dynamic load ratings and rating life《滚动轴承 额定动力荷载和额定寿命》.pdf 59

TCVN 4173-2008 Rolling bearings Dynamic load ratings and rating life《滚动轴承 额定动力荷载和额定寿命》.pdfTCVN 4173-2008 Rolling bearings Dynamic load ratings and rating life《滚动轴承 额定动力荷载和额定寿命》.pdf

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