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NF C31-676-1998 Specifications for particular types of winding wires Part 26 polyamide-imide enamelled round copper wire class 200 《特种绕组线规范 第26部分 200级聚酰胺-酰亚胺漆包涂覆圆铜线》.pdf 12

NF C31-676-1998 Specifications for particular types of winding wires Part 26 polyamide-imide enamelled round copper wire class 200 《特种绕组线规范 第26部分 200级聚酰胺-酰亚胺漆包涂覆圆铜线》.pdfNF C31-676-1998 Specifications for particular types of winding wires Part 26 polyamide-imide enamelled round copper wire class 200 《特种绕组线规范 第26部分 200级聚酰胺-酰亚胺漆包涂覆圆铜线》.pdf

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NF C31-672-2005 Specifications for particular types of winding wires - Part 22 polyester or polyesterimide enamelled round copper wire overcoated with polyamide class 180 《特种绕组线规范.pdf 11

NF C31-672-2005 Specifications for particular types of winding wires - Part 22 polyester or polyesterimide enamelled round copper wire overcoated with polyamide class 180 《特种绕组线规范.pdfNF C31-672-2005 Specifications for particular types of winding wires - Part 22 polyester or polyesterimide enamelled round copper wire overcoated with polyamide class 180 《特种绕组线规范.pdf

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NF C31-668-2005 Specifications for particular types of winding wires - Part 18 polyvinyl acetal enamelled rectangular copper wire class 120 《特种绕组线规范 第18部分 120级聚乙烯醇缩乙醛漆包线扁铜线》.pdf 11

NF C31-668-2005 Specifications for particular types of winding wires - Part 18 polyvinyl acetal enamelled rectangular copper wire class 120 《特种绕组线规范 第18部分 120级聚乙烯醇缩乙醛漆包线扁铜线》.pdfNF C31-668-2005 Specifications for particular types of winding wires - Part 18 polyvinyl acetal enamelled rectangular copper wire class 120 《特种绕组线规范 第18部分 120级聚乙烯醇缩乙醛漆包线扁铜线》.pdf

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NF C20-040-4-2006 Insulation coordination for equipment within low-voltage systems - Part 4 consideration of high-frequency voltage stress 《低压系统内设备的绝缘配合 第4部分 高频电压应力的计算》.pdf 69

NF C20-040-4-2006 Insulation coordination for equipment within low-voltage systems - Part 4 consideration of high-frequency voltage stress 《低压系统内设备的绝缘配合 第4部分 高频电压应力的计算》.pdfNF C20-040-4-2006 Insulation coordination for equipment within low-voltage systems - Part 4 consideration of high-frequency voltage stress 《低压系统内设备的绝缘配合 第4部分 高频电压应力的计算》.pdf

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NF C20-013-1998 Protection of persons and equipment by enclosures Probes for verification 《防护罩对人员和设备的保护 验证用探针》.pdf 30

NF C20-013-1998 Protection of persons and equipment by enclosures Probes for verification 《防护罩对人员和设备的保护 验证用探针》.pdfNF C20-013-1998 Protection of persons and equipment by enclosures Probes for verification 《防护罩对人员和设备的保护 验证用探针》.pdf

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NF C20-012-1985 Recommendations of International Commission for conformity certification of electrical equipment (CEE) committee of testing stations《试验站电气设备(CEE)委员会合格认证用国际委员会建议》.pdf 24

NF C20-012-1985 Recommendations of International Commission for conformity certification of electrical equipment (CEE) committee of testing stations《试验站电气设备(CEE)委员会合格认证用国际委员会建议》.pdfNF C20-012-1985 Recommendations of International Commission for conformity certification of electrical equipment (CEE) committee of testing stations《试验站电气设备(CEE)委员会合格认证用国际委员会建议》.pdf

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NF C20-011-1980 Guide for design supply utilisation of industrial equipments which are submit to severe environmental contraints where heat and moisture are the most important《受制于高.pdf 11

NF C20-011-1980 Guide for design supply utilisation of industrial equipments which are submit to severe environmental contraints where heat and moisture are the most important《受制于高.pdfNF C20-011-1980 Guide for design supply utilisation of industrial equipments which are submit to severe environmental contraints where heat and moisture are the most important《受制于高.pdf

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NF C20-010-1992 Degrees of protection provided by enclosures (IP Code) 《外壳防护等级(1P 代码)》.pdf 47

NF C20-010-1992 Degrees of protection provided by enclosures (IP Code) 《外壳防护等级(1P 代码)》.pdfNF C20-010-1992 Degrees of protection provided by enclosures (IP Code) 《外壳防护等级(1P 代码)》.pdf

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NF B51-170-5-1999 Plywood Classification by surface appearance Part 5 methods for measuring and expressing characteristics and defects 《胶合板 表面状况的分类 第5部分 测量方法和特征及缺陷的表示》.pdf 12

NF B51-170-5-1999 Plywood Classification by surface appearance Part 5 methods for measuring and expressing characteristics and defects 《胶合板 表面状况的分类 第5部分 测量方法和特征及缺陷的表示》.pdfNF B51-170-5-1999 Plywood Classification by surface appearance Part 5 methods for measuring and expressing characteristics and defects 《胶合板 表面状况的分类 第5部分 测量方法和特征及缺陷的表示》.pdf

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NF B51-153-1999 Wood-based panels - Determination of duration of load and creep factors《木基板 负荷持续时间和蠕变因子的测定》.pdf 17

NF B51-153-1999 Wood-based panels - Determination of duration of load and creep factors《木基板 负荷持续时间和蠕变因子的测定》.pdfNF B51-153-1999 Wood-based panels - Determination of duration of load and creep factors《木基板 负荷持续时间和蠕变因子的测定》.pdf

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