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IEC 61067-1-1991 Specification for glass and glass polyester fibre woven tapes part 1 definitions classification and general requirements《玻璃和玻璃聚酯纤维编织带规范 第1部分 定义、分类和一般要求》.pdf 21

IEC 61067-1-1991 Specification for glass and glass polyester fibre woven tapes part 1 definitions classification and general requirements《玻璃和玻璃聚酯纤维编织带规范 第1部分 定义、分类和一般要求》.pdfIEC 61067-1-1991 Specification for glass and glass polyester fibre woven tapes part 1 definitions classification and general requirements《玻璃和玻璃聚酯纤维编织带规范 第1部分 定义、分类和一般要求》.pdf

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IEC 61065-1991 Method for evaluating the low temperature flow properties of mineral insulating oils after ageing《老化后矿物绝缘油低温流动性的评定方法》.pdf 23

IEC 61065-1991 Method for evaluating the low temperature flow properties of mineral insulating oils after ageing《老化后矿物绝缘油低温流动性的评定方法》.pdfIEC 61065-1991 Method for evaluating the low temperature flow properties of mineral insulating oils after ageing《老化后矿物绝缘油低温流动性的评定方法》.pdf

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IEC 61064-1991 Acceptance tests for steam turbine speed control systems《汽轮机转速控制系统验收试验》.pdf 64

IEC 61064-1991 Acceptance tests for steam turbine speed control systems《汽轮机转速控制系统验收试验》.pdfIEC 61064-1991 Acceptance tests for steam turbine speed control systems《汽轮机转速控制系统验收试验》.pdf

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IEC 60835-1-2-1992 Methods of measurement for equipment used in digital microwave radio transmission systems part 1 measurements common to terrestrial radio-relay systems and satel.pdf 66

IEC 60835-1-2-1992 Methods of measurement for equipment used in digital microwave radio transmission systems part 1 measurements common to terrestrial radio-relay systems and satel.pdfIEC 60835-1-2-1992 Methods of measurement for equipment used in digital microwave radio transmission systems part 1 measurements common to terrestrial radio-relay systems and satel.pdf

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IEC 60835-1-1-1990 Methods of measurement for equipment used in digital microwave radio transmission systems part 1 measurements common to terrestrial radio-relay systems and satel.pdf 38

IEC 60835-1-1-1990 Methods of measurement for equipment used in digital microwave radio transmission systems part 1 measurements common to terrestrial radio-relay systems and satel.pdfIEC 60835-1-1-1990 Methods of measurement for equipment used in digital microwave radio transmission systems part 1 measurements common to terrestrial radio-relay systems and satel.pdf

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IEC 60834-2-1993 Performance and testing of teleprotection equipment of power systems part 2 analogue comparison systems《电力系统远方保护设备的性能和试验 第2部分 模拟比较系统》.pdf 82

IEC 60834-2-1993 Performance and testing of teleprotection equipment of power systems part 2 analogue comparison systems《电力系统远方保护设备的性能和试验 第2部分 模拟比较系统》.pdfIEC 60834-2-1993 Performance and testing of teleprotection equipment of power systems part 2 analogue comparison systems《电力系统远方保护设备的性能和试验 第2部分 模拟比较系统》.pdf

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IEC 60832-2-2010 Live working - Insulating sticks and attachable devices - Part 2 Attachable devices《带电作业.绝缘杆及附件设备.第2部分 附件设备》.pdf 126

IEC 60832-2-2010 Live working - Insulating sticks and attachable devices - Part 2 Attachable devices《带电作业.绝缘杆及附件设备.第2部分 附件设备》.pdfIEC 60832-2-2010 Live working - Insulating sticks and attachable devices - Part 2 Attachable devices《带电作业.绝缘杆及附件设备.第2部分 附件设备》.pdf

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IEC 60832-1-2010 Live working - Insulating sticks and attachable devices - Part 1 Insulating sticks《带电作业.绝缘杆及附件设备.第1部分 绝缘杆》.pdf 98

IEC 60832-1-2010 Live working - Insulating sticks and attachable devices - Part 1 Insulating sticks《带电作业.绝缘杆及附件设备.第1部分 绝缘杆》.pdfIEC 60832-1-2010 Live working - Insulating sticks and attachable devices - Part 1 Insulating sticks《带电作业.绝缘杆及附件设备.第1部分 绝缘杆》.pdf

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IEC 60667-1-1980 Specification for vulcanized fibre for electrical purposes Part 1 Definitions and general requirement《电工用刚纸规范 第1部分 定义和一般要求》.pdf 12

IEC 60667-1-1980 Specification for vulcanized fibre for electrical purposes Part 1 Definitions and general requirement《电工用刚纸规范 第1部分 定义和一般要求》.pdfIEC 60667-1-1980 Specification for vulcanized fibre for electrical purposes Part 1 Definitions and general requirement《电工用刚纸规范 第1部分 定义和一般要求》.pdf

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IEC 60665-1980 A.C electric ventilating fans and regulators for household and similar purposes《家用和类似用途的交流排气扇及其调速器》.pdf 58

IEC 60665-1980 A.C electric ventilating fans and regulators for household and similar purposes《家用和类似用途的交流排气扇及其调速器》.pdfIEC 60665-1980 A.C electric ventilating fans and regulators for household and similar purposes《家用和类似用途的交流排气扇及其调速器》.pdf

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