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JJF 1700-2018 《浊度计型式评价大纲》.pdf 27

JJF 1700-2018 《浊度计型式评价大纲》.pdfJJF 1700-2018 《浊度计型式评价大纲》.pdf

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JG T 425-2013 Timber beam for construction《建筑施工用木工字梁》.pdf 18

JG T 425-2013 Timber beam for construction《建筑施工用木工字梁》.pdfJG T 425-2013 Timber beam for construction《建筑施工用木工字梁》.pdf

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JG T 424-2013 General requirements for solar shading fabric of building《建筑遮阳用织物通用技术要求》.pdf 11

JG T 424-2013 General requirements for solar shading fabric of building《建筑遮阳用织物通用技术要求》.pdfJG T 424-2013 General requirements for solar shading fabric of building《建筑遮阳用织物通用技术要求》.pdf

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JG T 423-2013 Architectural shading membrane《遮阳用膜结构织物》.pdf 14

JG T 423-2013 Architectural shading membrane《遮阳用膜结构织物》.pdfJG T 423-2013 Architectural shading membrane《遮阳用膜结构织物》.pdf

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JG T 422-2013 Optical fiber grating strain sensor for civil engineering《土木工程用光纤光栅应变传感器》.pdf 13

JG T 422-2013 Optical fiber grating strain sensor for civil engineering《土木工程用光纤光栅应变传感器》.pdfJG T 422-2013 Optical fiber grating strain sensor for civil engineering《土木工程用光纤光栅应变传感器》.pdf

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JG T 421-2013 Optical fiber grating temperature sensor for civil engineering《土木工程用光纤光栅温度传感器》.pdf 13

JG T 421-2013 Optical fiber grating temperature sensor for civil engineering《土木工程用光纤光栅温度传感器》.pdfJG T 421-2013 Optical fiber grating temperature sensor for civil engineering《土木工程用光纤光栅温度传感器》.pdf

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JB T 8644-2017 《单螺杆泵》.pdf 15

JB T 8644-2017 《单螺杆泵》.pdfJB T 8644-2017 《单螺杆泵》.pdf

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JB T 8598-2013 Quick-change ring for restricting change gears at the shaft end of machine tool《机床交换齿轮轴端固定快卸圈》.pdf 6

JB T 8598-2013 Quick-change ring for restricting change gears at the shaft end of machine tool《机床交换齿轮轴端固定快卸圈》.pdfJB T 8598-2013 Quick-change ring for restricting change gears at the shaft end of machine tool《机床交换齿轮轴端固定快卸圈》.pdf

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JB T 8588-1997 Safety requirement for cooling fan of welding machine《电焊机用冷却风机的安全要求》.pdf 16

JB T 8588-1997 Safety requirement for cooling fan of welding machine《电焊机用冷却风机的安全要求》.pdfJB T 8588-1997 Safety requirement for cooling fan of welding machine《电焊机用冷却风机的安全要求》.pdf

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JB T 8587-1997 Safety requirement for internal combustion engine power stations《内燃机电站安全要求》.pdf 11

JB T 8587-1997 Safety requirement for internal combustion engine power stations《内燃机电站安全要求》.pdfJB T 8587-1997 Safety requirement for internal combustion engine power stations《内燃机电站安全要求》.pdf

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