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NC 07-09-1986 Machine Elements for Movement Transmission Indented Vheels for Short Pitch Transmission Chains with Bush or Roll Quality Specifications《移动传输的机械零件 短节距传输链的锯状轮（有衬套和滚轴）质量.pdf 35

NC 07-09-1986 Machine Elements for Movement Transmission Indented Vheels for Short Pitch Transmission Chains with Bush or Roll Quality Specifications《移动传输的机械零件 短节距传输链的锯状轮（有衬套和滚轴）质量.pdfNC 07-09-1986 Machine Elements for Movement Transmission Indented Vheels for Short Pitch Transmission Chains with Bush or Roll Quality Specifications《移动传输的机械零件 短节距传输链的锯状轮（有衬套和滚轴）质量.pdf

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NC 07-08-1971 Basic rack straight bevel years Selection of modules《基准齿条直齿锥齿轮 模块选择》.pdf 2

NC 07-08-1971 Basic rack straight bevel years Selection of modules《基准齿条直齿锥齿轮 模块选择》.pdfNC 07-08-1971 Basic rack straight bevel years Selection of modules《基准齿条直齿锥齿轮 模块选择》.pdf

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NC 07-06-1968 Compresion and tension helical springs Calculus《压伸螺旋弹簧》.pdf 23

NC 07-06-1968 Compresion and tension helical springs Calculus《压伸螺旋弹簧》.pdfNC 07-06-1968 Compresion and tension helical springs Calculus《压伸螺旋弹簧》.pdf

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NBN-ISO 226-1992 7500 Acoustics Normal equal-loudness level contours《声学 正常等响曲线》.pdf 2

NBN-ISO 226-1992 7500 Acoustics Normal equal-loudness level contours《声学 正常等响曲线》.pdfNBN-ISO 226-1992 7500 Acoustics Normal equal-loudness level contours《声学 正常等响曲线》.pdf

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NBN-ISO 2249-1992 3750 Acoustics Description and measurement of physical properties of sonic booms《声学 音爆物理性质的描述和测定》.pdf 2

NBN-ISO 2249-1992 3750 Acoustics Description and measurement of physical properties of sonic booms《声学 音爆物理性质的描述和测定》.pdfNBN-ISO 2249-1992 3750 Acoustics Description and measurement of physical properties of sonic booms《声学 音爆物理性质的描述和测定》.pdf

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NBN-ISO 2219-1992 0625 Expanded pure agglomerated cork for thermal insulation Characteristics sampling and packaging《热绝缘用纯的成块膨胀软木 特性，取样和包装》.pdf 2

NBN-ISO 2219-1992 0625 Expanded pure agglomerated cork for thermal insulation Characteristics sampling and packaging《热绝缘用纯的成块膨胀软木 特性，取样和包装》.pdfNBN-ISO 2219-1992 0625 Expanded pure agglomerated cork for thermal insulation Characteristics sampling and packaging《热绝缘用纯的成块膨胀软木 特性，取样和包装》.pdf

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NBN-ISO 2204-1992 6875 Acoustics Guide to International Standards on the measurement of airborne acoustical noise and evaluation of its effects on human beings《声学 关于空气噪声的测量及其对人影响的评.pdf 2

NBN-ISO 2204-1992 6875 Acoustics Guide to International Standards on the measurement of airborne acoustical noise and evaluation of its effects on human beings《声学 关于空气噪声的测量及其对人影响的评.pdfNBN-ISO 2204-1992 6875 Acoustics Guide to International Standards on the measurement of airborne acoustical noise and evaluation of its effects on human beings《声学 关于空气噪声的测量及其对人影响的评.pdf

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NBN-ISO 2191-1992 2500 Cork Expanded prue agglomerated Deformation under constant pressure《软木 纯的成块膨胀软木 在恒压下测定》.pdf 2

NBN-ISO 2191-1992 2500 Cork Expanded prue agglomerated Deformation under constant pressure《软木 纯的成块膨胀软木 在恒压下测定》.pdfNBN-ISO 2191-1992 2500 Cork Expanded prue agglomerated Deformation under constant pressure《软木 纯的成块膨胀软木 在恒压下测定》.pdf

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NBN-EN 60931-2-1994 1250 Shunt power capacitors of the non-self-healing type for a c systems having a rated voltage up to and including 1000 V Part 2 Ageing test and destruction t.pdf 2

NBN-EN 60931-2-1994 1250 Shunt power capacitors of the non-self-healing type for a c systems having a rated voltage up to and including 1000 V Part 2 Ageing test and destruction t.pdfNBN-EN 60931-2-1994 1250 Shunt power capacitors of the non-self-healing type for a c systems having a rated voltage up to and including 1000 V Part 2 Ageing test and destruction t.pdf

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NBN-EN 60931-1-1994 0625 Shunt power capacitors of the non-self-healing type for a c systems having a rated voltage up to and including 1000 V Part 1 General - Performance testingns.pdf 2

NBN-EN 60931-1-1994 0625 Shunt power capacitors of the non-self-healing type for a c systems having a rated voltage up to and including 1000 V Part 1 General - Performance testingns.pdfNBN-EN 60931-1-1994 0625 Shunt power capacitors of the non-self-healing type for a c systems having a rated voltage up to and including 1000 V Part 1 General - Performance testingns.pdf

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