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I.S. 62-1955 WOOD FIBRE BUILDING BOARDS《木质纤维建筑板材》.pdf 14

I.S. 62-1955 WOOD FIBRE BUILDING BOARDS《木质纤维建筑板材》.pdfI.S. 62-1955 WOOD FIBRE BUILDING BOARDS《木质纤维建筑板材》.pdf

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I.S. 61-1956 IDENTIFICATION OF MEDICAL GAS CYLINDERS《医用气瓶的标识》.pdf 8

I.S. 61-1956 IDENTIFICATION OF MEDICAL GAS CYLINDERS《医用气瓶的标识》.pdfI.S. 61-1956 IDENTIFICATION OF MEDICAL GAS CYLINDERS《医用气瓶的标识》.pdf

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I.S. 60-1955 STEEL CASEMENT WINDOWS AND DOORS《钢制玻璃窗和门》.pdf 37

I.S. 60-1955 STEEL CASEMENT WINDOWS AND DOORS《钢制玻璃窗和门》.pdfI.S. 60-1955 STEEL CASEMENT WINDOWS AND DOORS《钢制玻璃窗和门》.pdf

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I.S. 6-1965 CONCRETE CYLINDRICAL PIPES《混凝土圆管》.pdf 19

I.S. 6-1965 CONCRETE CYLINDRICAL PIPES《混凝土圆管》.pdfI.S. 6-1965 CONCRETE CYLINDRICAL PIPES《混凝土圆管》.pdf

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I.S. 59-1953 (PRESSED STEEL RAINWATER GOODS)ORDER 1953《（压钢雨水制品），1953年颁布》.pdf 14

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HD 568 S1-1990 Methods of Test for the Determination of the Insulation Resistance of Solid Insulating Materials《测试方法对固体绝缘材料绝缘电阻的测定》.pdf 3

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HD 567 6 S1-1990 Recommended Methods of Measurement on Receivers for Television Broadcast Transmissions Part 6 Measurement Under Conditions Different from Broad.pdf 3

HD 567 6 S1-1990 Recommended Methods of Measurement on Receivers for Television Broadcast Transmissions Part 6 Measurement Under Conditions Different from Broad.pdfHD 567 6 S1-1990 Recommended Methods of Measurement on Receivers for Television Broadcast Transmissions Part 6 Measurement Under Conditions Different from Broad.pdf

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HD 566 S1-1990 Thermal Evaluation and Classification of Electrical Insulation《电气绝缘的耐热性评定和分级 由EN 60085-2004替代》.pdf 3

HD 566 S1-1990 Thermal Evaluation and Classification of Electrical Insulation《电气绝缘的耐热性评定和分级 由EN 60085-2004替代》.pdfHD 566 S1-1990 Thermal Evaluation and Classification of Electrical Insulation《电气绝缘的耐热性评定和分级 由EN 60085-2004替代》.pdf

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HD 564 S1-1990 Nominal Dimensions of Cylindrical Machined Graphite Electrodes with Threaded Sockets and Nipples for Use in Electric Arc Furnaces《电弧炉中使用的带螺纹口和接头的.pdf 10

HD 564 S1-1990 Nominal Dimensions of Cylindrical Machined Graphite Electrodes with Threaded Sockets and Nipples for Use in Electric Arc Furnaces《电弧炉中使用的带螺纹口和接头的.pdfHD 564 S1-1990 Nominal Dimensions of Cylindrical Machined Graphite Electrodes with Threaded Sockets and Nipples for Use in Electric Arc Furnaces《电弧炉中使用的带螺纹口和接头的.pdf

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HD 560 3 S1-1992 Methods of Measurement on Radio Receivers for Various Classes of Emission Part 3 Receivers for Amplitude-Modulated Sound-Broadcasting Emissions.pdf 5

HD 560 3 S1-1992 Methods of Measurement on Radio Receivers for Various Classes of Emission Part 3 Receivers for Amplitude-Modulated Sound-Broadcasting Emissions.pdfHD 560 3 S1-1992 Methods of Measurement on Radio Receivers for Various Classes of Emission Part 3 Receivers for Amplitude-Modulated Sound-Broadcasting Emissions.pdf

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