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NF G07-178-3-1999 Textiles - Determination of the abrasion resistance of fabrics by the Martindale method - Part 3 determination of mass loss 《织物 马尔第那达尔法测定纤维磨损抗性的测定 第3部分 重量损失测定》.pdf 18

NF G07-178-3-1999 Textiles - Determination of the abrasion resistance of fabrics by the Martindale method - Part 3 determination of mass loss 《织物 马尔第那达尔法测定纤维磨损抗性的测定 第3部分 重量损失测定》.pdfNF G07-178-3-1999 Textiles - Determination of the abrasion resistance of fabrics by the Martindale method - Part 3 determination of mass loss 《织物 马尔第那达尔法测定纤维磨损抗性的测定 第3部分 重量损失测定》.pdf

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NF G07-178-1-1999 Textiles - Determination of the abrasion resistance of fabrics by the Martindale method - Part 1 Martindale abrasion testing apparatus 《织物 马尔第那达尔法测定纤维磨损抗性的测定 第1部.pdf 23

NF G07-178-1-1999 Textiles - Determination of the abrasion resistance of fabrics by the Martindale method - Part 1 Martindale abrasion testing apparatus 《织物 马尔第那达尔法测定纤维磨损抗性的测定 第1部.pdfNF G07-178-1-1999 Textiles - Determination of the abrasion resistance of fabrics by the Martindale method - Part 1 Martindale abrasion testing apparatus 《织物 马尔第那达尔法测定纤维磨损抗性的测定 第1部.pdf

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NF F50-007-1990 Railway fixed equipment Wide hexagon nuts grade B Hl nuts 《铁路固定设备 B级宽六角螺母 Hl螺母》.pdf 8

NF F50-007-1990 Railway fixed equipment Wide hexagon nuts grade B Hl nuts 《铁路固定设备 B级宽六角螺母 Hl螺母》.pdfNF F50-007-1990 Railway fixed equipment Wide hexagon nuts grade B Hl nuts 《铁路固定设备 B级宽六角螺母 Hl螺母》.pdf

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NF F50-006-1998 Railway fixed equipment Sleeper screws with variable thread 《铁路固定设备 带可变螺纹的枕木螺丝》.pdf 17

NF F50-006-1998 Railway fixed equipment Sleeper screws with variable thread 《铁路固定设备 带可变螺纹的枕木螺丝》.pdfNF F50-006-1998 Railway fixed equipment Sleeper screws with variable thread 《铁路固定设备 带可变螺纹的枕木螺丝》.pdf

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NF F50-001-1986 Fixed railway equipment Reinforced single coil-spring washer 《铁路固定设备 加强型单个螺旋弹簧垫圈》.pdf 3

NF F50-001-1986 Fixed railway equipment Reinforced single coil-spring washer 《铁路固定设备 加强型单个螺旋弹簧垫圈》.pdfNF F50-001-1986 Fixed railway equipment Reinforced single coil-spring washer 《铁路固定设备 加强型单个螺旋弹簧垫圈》.pdf

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NF F48-515-1993 Fixed railway equipment Electric accumulators Stationary lead accumulators 《铁路固定设备 蓄电池 静止铅蓄电池》.pdf 19

NF F48-515-1993 Fixed railway equipment Electric accumulators Stationary lead accumulators 《铁路固定设备 蓄电池 静止铅蓄电池》.pdfNF F48-515-1993 Fixed railway equipment Electric accumulators Stationary lead accumulators 《铁路固定设备 蓄电池 静止铅蓄电池》.pdf

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NF F48-230-1991 Railway fixed equipment Modular power supply for systems of signals equipment telecommunication equipment and computer equipment Tertiary system 《铁路固定设备 信号设备、通信设备和计.pdf 20

NF F48-230-1991 Railway fixed equipment Modular power supply for systems of signals equipment telecommunication equipment and computer equipment Tertiary system 《铁路固定设备 信号设备、通信设备和计.pdfNF F48-230-1991 Railway fixed equipment Modular power supply for systems of signals equipment telecommunication equipment and computer equipment Tertiary system 《铁路固定设备 信号设备、通信设备和计.pdf

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NF E90-501-1984 Mechanical vibration and shock Specifying characteristics for mechanical isolation Guide for selecting and applying resilient isolators 《机械振动和冲击 机械隔振特性的规定 弹性隔振器的选择和.pdf 14

NF E90-501-1984 Mechanical vibration and shock Specifying characteristics for mechanical isolation Guide for selecting and applying resilient isolators 《机械振动和冲击 机械隔振特性的规定 弹性隔振器的选择和.pdfNF E90-501-1984 Mechanical vibration and shock Specifying characteristics for mechanical isolation Guide for selecting and applying resilient isolators 《机械振动和冲击 机械隔振特性的规定 弹性隔振器的选择和.pdf

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NF E90-454-1997 Mechanical vibration and shock Vibration isolation of machines Information for the application of source isolation 《机械振动和冲击 机械的振动隔离 振动源隔离的应用信息 (欧洲标准EN 1299)》.pdf 19

NF E90-454-1997 Mechanical vibration and shock Vibration isolation of machines Information for the application of source isolation 《机械振动和冲击 机械的振动隔离 振动源隔离的应用信息 (欧洲标准EN 1299)》.pdfNF E90-454-1997 Mechanical vibration and shock Vibration isolation of machines Information for the application of source isolation 《机械振动和冲击 机械的振动隔离 振动源隔离的应用信息 (欧洲标准EN 1299)》.pdf

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NF E90-454 IN1-2009 Mechanical vibration and shock - Vibration isolation of machines - Information for the application of source isolation 《机械振动和冲击 机器的隔振 振动源隔振的应用信息》.pdf 4

NF E90-454 IN1-2009 Mechanical vibration and shock - Vibration isolation of machines - Information for the application of source isolation 《机械振动和冲击 机器的隔振 振动源隔振的应用信息》.pdfNF E90-454 IN1-2009 Mechanical vibration and shock - Vibration isolation of machines - Information for the application of source isolation 《机械振动和冲击 机器的隔振 振动源隔振的应用信息》.pdf

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