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NF A51-204-1998 Copper and copper alloys - Strip for lead frames 《铜和铜合金 引线框架带材》.pdf 27

NF A51-204-1998 Copper and copper alloys - Strip for lead frames 《铜和铜合金 引线框架带材》.pdfNF A51-204-1998 Copper and copper alloys - Strip for lead frames 《铜和铜合金 引线框架带材》.pdf

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NF A51-203-1998 Copper and copper alloys - Strip for springs and connectors 《铜和铜合金 弹簧和连接器用带材》.pdf 43

NF A51-203-1998 Copper and copper alloys - Strip for springs and connectors 《铜和铜合金 弹簧和连接器用带材》.pdfNF A51-203-1998 Copper and copper alloys - Strip for springs and connectors 《铜和铜合金 弹簧和连接器用带材》.pdf

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NF A51-202-1998 Copper and copper alloys Plate sheet and circles for boilers pressure vessels and hot water storage units 《铜和合金铜 锅炉、压力容器和热水贮存器用的板、薄板和圆材》.pdf 28

NF A51-202-1998 Copper and copper alloys Plate sheet and circles for boilers pressure vessels and hot water storage units 《铜和合金铜 锅炉、压力容器和热水贮存器用的板、薄板和圆材》.pdfNF A51-202-1998 Copper and copper alloys Plate sheet and circles for boilers pressure vessels and hot water storage units 《铜和合金铜 锅炉、压力容器和热水贮存器用的板、薄板和圆材》.pdf

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NF A51-201-1998 Copper and copper alloys - Plate sheet strip and circles for general purposes 《铜和铜合金 一般用途的板材、薄板、带材和圆材》.pdf 41

NF A51-201-1998 Copper and copper alloys - Plate sheet strip and circles for general purposes 《铜和铜合金 一般用途的板材、薄板、带材和圆材》.pdfNF A51-201-1998 Copper and copper alloys - Plate sheet strip and circles for general purposes 《铜和铜合金 一般用途的板材、薄板、带材和圆材》.pdf

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NF A51-090-1999 Copper and copper alloys Determination of spring bending limit on strip 《铜及铜合金 带材弹性弯折极限的测定》.pdf 14

NF A51-090-1999 Copper and copper alloys Determination of spring bending limit on strip 《铜及铜合金 带材弹性弯折极限的测定》.pdfNF A51-090-1999 Copper and copper alloys Determination of spring bending limit on strip 《铜及铜合金 带材弹性弯折极限的测定》.pdf

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NF A06-832-1973 Zinc for galvanizing purposes Volumetric determination of tin 《电镀用锌 锡的容积法测定》.pdf 4

NF A06-832-1973 Zinc for galvanizing purposes Volumetric determination of tin 《电镀用锌 锡的容积法测定》.pdfNF A06-832-1973 Zinc for galvanizing purposes Volumetric determination of tin 《电镀用锌 锡的容积法测定》.pdf

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NF A06-830-1973 Zinc for galvanizing purposes 《电镀用锌》.pdf 8

NF A06-830-1973 Zinc for galvanizing purposes 《电镀用锌》.pdfNF A06-830-1973 Zinc for galvanizing purposes 《电镀用锌》.pdf

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NF A06-827-1968 Chemical analysis of zinc alloys Spectrophotometric determination of titanium 《锌合金的化学分析 钛的分光光度计法测定》.pdf 3

NF A06-827-1968 Chemical analysis of zinc alloys Spectrophotometric determination of titanium 《锌合金的化学分析 钛的分光光度计法测定》.pdfNF A06-827-1968 Chemical analysis of zinc alloys Spectrophotometric determination of titanium 《锌合金的化学分析 钛的分光光度计法测定》.pdf

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NF A06-826-1968 Chemical analysis of zinc alloys Titrimetric determination of magnesium 《锌合金的化学分析 镁的滴定法测定》.pdf 3

NF A06-826-1968 Chemical analysis of zinc alloys Titrimetric determination of magnesium 《锌合金的化学分析 镁的滴定法测定》.pdfNF A06-826-1968 Chemical analysis of zinc alloys Titrimetric determination of magnesium 《锌合金的化学分析 镁的滴定法测定》.pdf

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NF A06-824-1971 Chemical analysis of zinc alloys Polarographic determination of lead and cadmium 《锌合金化学分析 铅和镉的极谱法测定》.pdf 5

NF A06-824-1971 Chemical analysis of zinc alloys Polarographic determination of lead and cadmium 《锌合金化学分析 铅和镉的极谱法测定》.pdfNF A06-824-1971 Chemical analysis of zinc alloys Polarographic determination of lead and cadmium 《锌合金化学分析 铅和镉的极谱法测定》.pdf

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