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NF A49-192-1981 Steel tubes Welded rings internally threaded for pressure equipment 《钢管 压力容器用内螺纹非合金钢焊接套管》.pdf 4

NF A49-192-1981 Steel tubes Welded rings internally threaded for pressure equipment 《钢管 压力容器用内螺纹非合金钢焊接套管》.pdfNF A49-192-1981 Steel tubes Welded rings internally threaded for pressure equipment 《钢管 压力容器用内螺纹非合金钢焊接套管》.pdf

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NF A49-191-1975 Steel tubes Spigot or mixed connections made of steel or cast iron for capillary brazing or braze welding Dimensions Technical delivery conditions 《钢管 毛细管钎焊或硬焊用钢或铸铁.pdf 14

NF A49-191-1975 Steel tubes Spigot or mixed connections made of steel or cast iron for capillary brazing or braze welding Dimensions Technical delivery conditions 《钢管 毛细管钎焊或硬焊用钢或铸铁.pdfNF A49-191-1975 Steel tubes Spigot or mixed connections made of steel or cast iron for capillary brazing or braze welding Dimensions Technical delivery conditions 《钢管 毛细管钎焊或硬焊用钢或铸铁.pdf

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NF A49-189-1980 Steel tubes Butt welding night-angled bends 3d galvanized dimensions Technical delivery conditions 《钢管 90度镀锌3d样式对焊 尺寸 交货技术条件》.pdf 6

NF A49-189-1980 Steel tubes Butt welding night-angled bends 3d galvanized dimensions Technical delivery conditions 《钢管 90度镀锌3d样式对焊 尺寸 交货技术条件》.pdfNF A49-189-1980 Steel tubes Butt welding night-angled bends 3d galvanized dimensions Technical delivery conditions 《钢管 90度镀锌3d样式对焊 尺寸 交货技术条件》.pdf

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NF A06-656-1993 Chemical analysis of titanium alloys Determination of vanadium content in Ti-AI-V alloy Titrimetric method 《钛合金的化学分析 TI-AI-V合金中钒含量的测定 滴定法》.pdf 7

NF A06-656-1993 Chemical analysis of titanium alloys Determination of vanadium content in Ti-AI-V alloy Titrimetric method 《钛合金的化学分析 TI-AI-V合金中钒含量的测定 滴定法》.pdfNF A06-656-1993 Chemical analysis of titanium alloys Determination of vanadium content in Ti-AI-V alloy Titrimetric method 《钛合金的化学分析 TI-AI-V合金中钒含量的测定 滴定法》.pdf

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NF A06-655-1993 Chemical analysis of titanium and titanium alloys Determination of silicon content Gravimetric method 《钛及钛合金的化学分析 硅含量测定 重量分析法》.pdf 7

NF A06-655-1993 Chemical analysis of titanium and titanium alloys Determination of silicon content Gravimetric method 《钛及钛合金的化学分析 硅含量测定 重量分析法》.pdfNF A06-655-1993 Chemical analysis of titanium and titanium alloys Determination of silicon content Gravimetric method 《钛及钛合金的化学分析 硅含量测定 重量分析法》.pdf

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NF A06-654-1993 Chemical analysis of titanium alloys Determination of nitrogen content Titrimetric method 《钛合金化学分析 氮含量测定 滴定法》.pdf 10

NF A06-654-1993 Chemical analysis of titanium alloys Determination of nitrogen content Titrimetric method 《钛合金化学分析 氮含量测定 滴定法》.pdfNF A06-654-1993 Chemical analysis of titanium alloys Determination of nitrogen content Titrimetric method 《钛合金化学分析 氮含量测定 滴定法》.pdf

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NF A06-653-1993 Chemical analysis of titanium and titanium alloys Determination of iron content Molecular absorption spectrometry method 《钛及钛合金的化学分析 铁含量测定 分子吸收光谱测定法》.pdf 8

NF A06-653-1993 Chemical analysis of titanium and titanium alloys Determination of iron content Molecular absorption spectrometry method 《钛及钛合金的化学分析 铁含量测定 分子吸收光谱测定法》.pdfNF A06-653-1993 Chemical analysis of titanium and titanium alloys Determination of iron content Molecular absorption spectrometry method 《钛及钛合金的化学分析 铁含量测定 分子吸收光谱测定法》.pdf

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NF A06-652-1993 Chemical analysis of titanium alloys Determination of aluminium content in Ti-AI-V alloy Titrimetric method with EDTA 《钛合金的化学分析 Ti-AI-V合金中铝含量的测定 EDTA滴定法》.pdf 8

NF A06-652-1993 Chemical analysis of titanium alloys Determination of aluminium content in Ti-AI-V alloy Titrimetric method with EDTA 《钛合金的化学分析 Ti-AI-V合金中铝含量的测定 EDTA滴定法》.pdfNF A06-652-1993 Chemical analysis of titanium alloys Determination of aluminium content in Ti-AI-V alloy Titrimetric method with EDTA 《钛合金的化学分析 Ti-AI-V合金中铝含量的测定 EDTA滴定法》.pdf

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NEN-EN 589-1993 Automative fuels LPG Requirements and methods of test《机动车燃料 液化石油气 实验要求与方法》.pdf 10

NEN-EN 589-1993 Automative fuels LPG Requirements and methods of test《机动车燃料 液化石油气 实验要求与方法》.pdfNEN-EN 589-1993 Automative fuels LPG Requirements and methods of test《机动车燃料 液化石油气 实验要求与方法》.pdf

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NEN-EN 582-1994 Thermal spraying Determination of adhesive tensile strength《热喷涂 抗拉结合强度的测定》.pdf 7

NEN-EN 582-1994 Thermal spraying Determination of adhesive tensile strength《热喷涂 抗拉结合强度的测定》.pdfNEN-EN 582-1994 Thermal spraying Determination of adhesive tensile strength《热喷涂 抗拉结合强度的测定》.pdf

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