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I.S. 54-1955 STEEL CYLINDERS(U S A TYPE)FOR PERMANENT GASES《“永久性”气体用钢瓶（美国型）》.pdf 15

I.S. 54-1955 STEEL CYLINDERS(U S A TYPE)FOR PERMANENT GASES《“永久性”气体用钢瓶（美国型）》.pdfI.S. 54-1955 STEEL CYLINDERS(U S A TYPE)FOR PERMANENT GASES《“永久性”气体用钢瓶（美国型）》.pdf

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HD 560 1 S1-1990 Methods of Measurement on Radio Receivers for Various Classes of Emission Part 1 General Considerations and Methods of Measurement Including Au.pdf 3

HD 560 1 S1-1990 Methods of Measurement on Radio Receivers for Various Classes of Emission Part 1 General Considerations and Methods of Measurement Including Au.pdfHD 560 1 S1-1990 Methods of Measurement on Radio Receivers for Various Classes of Emission Part 1 General Considerations and Methods of Measurement Including Au.pdf

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HD 559 2 S1-1991 Methods of Test for Electric Strength of Solid Insulating Materials - Part 2 Additional Requirements for Tests Using Direct Voltage《固体绝缘材料的介电强度.pdf 5

HD 559 2 S1-1991 Methods of Test for Electric Strength of Solid Insulating Materials - Part 2 Additional Requirements for Tests Using Direct Voltage《固体绝缘材料的介电强度.pdfHD 559 2 S1-1991 Methods of Test for Electric Strength of Solid Insulating Materials - Part 2 Additional Requirements for Tests Using Direct Voltage《固体绝缘材料的介电强度.pdf

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HD 559 1 S1-1991 Methods of Test for Electric Strength of Solid Insulating Materials Part 1 Tests at Power Frequencies《固体绝缘材料耐电强度的试验方法 第1部分 电源频率下的试验(IEC 243-1-8.pdf 5

HD 559 1 S1-1991 Methods of Test for Electric Strength of Solid Insulating Materials Part 1 Tests at Power Frequencies《固体绝缘材料耐电强度的试验方法 第1部分 电源频率下的试验(IEC 243-1-8.pdfHD 559 1 S1-1991 Methods of Test for Electric Strength of Solid Insulating Materials Part 1 Tests at Power Frequencies《固体绝缘材料耐电强度的试验方法 第1部分 电源频率下的试验(IEC 243-1-8.pdf

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HD 557 S1-1990 Binary Direct Voltage Signals for Process Measurement and Control Systems《过程测量和控制系统用二进直流电压信号》.pdf 3

HD 557 S1-1990 Binary Direct Voltage Signals for Process Measurement and Control Systems《过程测量和控制系统用二进直流电压信号》.pdfHD 557 S1-1990 Binary Direct Voltage Signals for Process Measurement and Control Systems《过程测量和控制系统用二进直流电压信号》.pdf

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HD 555 8 S1-1990 Specifications for Particular Types of Winding Wires Part 8 Polyesterimide Enamelled Round Copper Winding Wire Class 180《特种绕组线规范 第8部分 180级聚酰胺酯漆.pdf 3

HD 555 8 S1-1990 Specifications for Particular Types of Winding Wires Part 8 Polyesterimide Enamelled Round Copper Winding Wire Class 180《特种绕组线规范 第8部分 180级聚酰胺酯漆.pdfHD 555 8 S1-1990 Specifications for Particular Types of Winding Wires Part 8 Polyesterimide Enamelled Round Copper Winding Wire Class 180《特种绕组线规范 第8部分 180级聚酰胺酯漆.pdf

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HD 400 2 S2-1989 Hand-Held Motor Operated Tools - Part II Particular Specifications Section E Circular Saws and Circular Knives《手提式电动工具 第2部分 特殊规范 第E节 圆盘锯和圆盘刀》.pdf 8

HD 400 2 S2-1989 Hand-Held Motor Operated Tools - Part II Particular Specifications Section E Circular Saws and Circular Knives《手提式电动工具 第2部分 特殊规范 第E节 圆盘锯和圆盘刀》.pdfHD 400 2 S2-1989 Hand-Held Motor Operated Tools - Part II Particular Specifications Section E Circular Saws and Circular Knives《手提式电动工具 第2部分 特殊规范 第E节 圆盘锯和圆盘刀》.pdf

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HD 40 001-1989 Information Systems Interconnection Combinations of Reference Documents for the Elaboration of Functional Standards《信息系统互连 功能标准细化用参考文件的组合》.pdf 3

HD 40 001-1989 Information Systems Interconnection Combinations of Reference Documents for the Elaboration of Functional Standards《信息系统互连 功能标准细化用参考文件的组合》.pdfHD 40 001-1989 Information Systems Interconnection Combinations of Reference Documents for the Elaboration of Functional Standards《信息系统互连 功能标准细化用参考文件的组合》.pdf

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HD 399-1979 Measurement of Transformer and Reactor Sound Level《变压器和电抗器声级的测定》.pdf 9

HD 399-1979 Measurement of Transformer and Reactor Sound Level《变压器和电抗器声级的测定》.pdfHD 399-1979 Measurement of Transformer and Reactor Sound Level《变压器和电抗器声级的测定》.pdf

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HD 398 5 A1-1988 AMD 1 Power Transformers Part 5 Ability to Withstand Short-Circuit《修改件1 电源变压器 第5部分 承受短路的能力 由EN 60076-5-2000替代》.pdf 4

HD 398 5 A1-1988 AMD 1 Power Transformers Part 5 Ability to Withstand Short-Circuit《修改件1 电源变压器 第5部分 承受短路的能力 由EN 60076-5-2000替代》.pdfHD 398 5 A1-1988 AMD 1 Power Transformers Part 5 Ability to Withstand Short-Circuit《修改件1 电源变压器 第5部分 承受短路的能力 由EN 60076-5-2000替代》.pdf

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