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NF B50-001-1971 WOOD NOMENCLATURE 《木材 术语》.pdf 43

NF B50-001-1971 WOOD NOMENCLATURE 《木材 术语》.pdfNF B50-001-1971 WOOD NOMENCLATURE 《木材 术语》.pdf

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NF B49-421-1990 Refractory products Chemical analysis of aluminous siliceous silicon carbide carbon and metallic silicon refractory products 《耐火材料制品 铝矾土、硅质材料、碳化硅、碳和金属硅耐火材料制品的化学分析》.pdf 19

NF B49-421-1990 Refractory products Chemical analysis of aluminous siliceous silicon carbide carbon and metallic silicon refractory products 《耐火材料制品 铝矾土、硅质材料、碳化硅、碳和金属硅耐火材料制品的化学分析》.pdfNF B49-421-1990 Refractory products Chemical analysis of aluminous siliceous silicon carbide carbon and metallic silicon refractory products 《耐火材料制品 铝矾土、硅质材料、碳化硅、碳和金属硅耐火材料制品的化学分析》.pdf

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NF B49-420-1970 Chemical analysis of refractories Silica materials Determination of silicon (rapid method by hydrofluoric volatilisation) 《耐火材料化学分析 硅材料 硅含量测定 (氢氟快速挥发法)》.pdf 2

NF B49-420-1970 Chemical analysis of refractories Silica materials Determination of silicon (rapid method by hydrofluoric volatilisation) 《耐火材料化学分析 硅材料 硅含量测定 (氢氟快速挥发法)》.pdfNF B49-420-1970 Chemical analysis of refractories Silica materials Determination of silicon (rapid method by hydrofluoric volatilisation) 《耐火材料化学分析 硅材料 硅含量测定 (氢氟快速挥发法)》.pdf

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NF A82-130-1992 Spot welding Electrode back-ups and clamps 《点焊 电极垫板和夹子》.pdf 10

NF A82-130-1992 Spot welding Electrode back-ups and clamps 《点焊 电极垫板和夹子》.pdfNF A82-130-1992 Spot welding Electrode back-ups and clamps 《点焊 电极垫板和夹子》.pdf

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NF A82-111-1989 Electric resistance welding Low impedance cables Sizes specifications and tests 《电阻焊 低阻抗电缆 尺寸、规范 试验》.pdf 16

NF A82-111-1989 Electric resistance welding Low impedance cables Sizes specifications and tests 《电阻焊 低阻抗电缆 尺寸、规范 试验》.pdfNF A82-111-1989 Electric resistance welding Low impedance cables Sizes specifications and tests 《电阻焊 低阻抗电缆 尺寸、规范 试验》.pdf

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NF A82-108-1992 Dimensions of seam welding wheel blanks 《滚焊电极滚轮毛坯的尺寸》.pdf 5

NF A82-108-1992 Dimensions of seam welding wheel blanks 《滚焊电极滚轮毛坯的尺寸》.pdfNF A82-108-1992 Dimensions of seam welding wheel blanks 《滚焊电极滚轮毛坯的尺寸》.pdf

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NF A82-103-1994 Straight resistance spot welding electrodes 《直电阻点焊电极 》.pdf 7

NF A82-103-1994 Straight resistance spot welding electrodes 《直电阻点焊电极 》.pdfNF A82-103-1994 Straight resistance spot welding electrodes 《直电阻点焊电极 》.pdf

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NF A82-102-1992 Electrode taper fits for spot welding equipment Dimensions 《点焊设备用电极锥形配合 尺寸》.pdf 7

NF A82-102-1992 Electrode taper fits for spot welding equipment Dimensions 《点焊设备用电极锥形配合 尺寸》.pdfNF A82-102-1992 Electrode taper fits for spot welding equipment Dimensions 《点焊设备用电极锥形配合 尺寸》.pdf

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NF A09-400-1991 Non destructive testing Infrared thermography Vocabulary concerning the designation of the equipment 《无损检验 红外温度记录法 有关设备名称的词汇》.pdf 8

NF A09-400-1991 Non destructive testing Infrared thermography Vocabulary concerning the designation of the equipment 《无损检验 红外温度记录法 有关设备名称的词汇》.pdfNF A09-400-1991 Non destructive testing Infrared thermography Vocabulary concerning the designation of the equipment 《无损检验 红外温度记录法 有关设备名称的词汇》.pdf

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NF A09-355-1985 Non destructive testing Acoustic emission Coupling of piezoelectric sensors 《无损检验 声音发射 压电传感器的连接件》.pdf 2

NF A09-355-1985 Non destructive testing Acoustic emission Coupling of piezoelectric sensors 《无损检验 声音发射 压电传感器的连接件》.pdfNF A09-355-1985 Non destructive testing Acoustic emission Coupling of piezoelectric sensors 《无损检验 声音发射 压电传感器的连接件》.pdf

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