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NBN-ISO 1683-1992 0000 Acoustics Preferred reference quantities for acoustic levels《声学 声级测量用的优先参考数值》.pdf 2

NBN-ISO 1683-1992 0000 Acoustics Preferred reference quantities for acoustic levels《声学 声级测量用的优先参考数值》.pdfNBN-ISO 1683-1992 0000 Acoustics Preferred reference quantities for acoustic levels《声学 声级测量用的优先参考数值》.pdf

上传人：brainfellow396
2人阅读
NBN-ISO 1604-1991 1875 Belt drives - Endless wide V-belts for industrial speed-changers and groove profiles for corresponding pulleys《传送带 工业变速器用环状宽梯形传送带和皮带轮槽的断面》.pdf 4

NBN-ISO 1604-1991 1875 Belt drives - Endless wide V-belts for industrial speed-changers and groove profiles for corresponding pulleys《传送带 工业变速器用环状宽梯形传送带和皮带轮槽的断面》.pdfNBN-ISO 1604-1991 1875 Belt drives - Endless wide V-belts for industrial speed-changers and groove profiles for corresponding pulleys《传送带 工业变速器用环状宽梯形传送带和皮带轮槽的断面》.pdf

上传人：brainfellow396
2人阅读
NBN-ISO 16-1992 7500 Acoustics Standard tuning frequency (Standard musical pitch)《声学 标准调谐频率（标准音调）》.pdf 2

NBN-ISO 16-1992 7500 Acoustics Standard tuning frequency (Standard musical pitch)《声学 标准调谐频率（标准音调）》.pdfNBN-ISO 16-1992 7500 Acoustics Standard tuning frequency (Standard musical pitch)《声学 标准调谐频率（标准音调）》.pdf

上传人：brainfellow396
1人阅读
NBN-ISO 1518-1994 8750 Paints and varnishes - Scratch test《油漆和清漆 划痕试验》.pdf 2

NBN-ISO 1518-1994 8750 Paints and varnishes - Scratch test《油漆和清漆 划痕试验》.pdfNBN-ISO 1518-1994 8750 Paints and varnishes - Scratch test《油漆和清漆 划痕试验》.pdf

上传人：brainfellow396
2人阅读
NBN-ISO 1432-1990 1875 Rubber vulcanized or thermoplastic - Determination of low temperature stiffening (Gehman test)《硫化热塑性橡胶，低温硬化的测定方法（杰曼试验）》.pdf 2

NBN-ISO 1432-1990 1875 Rubber vulcanized or thermoplastic - Determination of low temperature stiffening (Gehman test)《硫化热塑性橡胶，低温硬化的测定方法（杰曼试验）》.pdfNBN-ISO 1432-1990 1875 Rubber vulcanized or thermoplastic - Determination of low temperature stiffening (Gehman test)《硫化热塑性橡胶，低温硬化的测定方法（杰曼试验）》.pdf

上传人：brainfellow396
1人阅读
NBN-EN 60695-2-4 1-1994 1875 Fire hazard testing Part 2 Test methods Section 4 sheet 1 1 kW nominal pre-mixed test flame and guidance《火险相关试验 第2部分：试验法 第4段 第1页：1kw预混剂火焰试验，标准尺寸和指南》.pdf 2

NBN-EN 60695-2-4 1-1994 1875 Fire hazard testing Part 2 Test methods Section 4 sheet 1 1 kW nominal pre-mixed test flame and guidance《火险相关试验 第2部分：试验法 第4段 第1页：1kw预混剂火焰试验，标准尺寸和指南》.pdfNBN-EN 60695-2-4 1-1994 1875 Fire hazard testing Part 2 Test methods Section 4 sheet 1 1 kW nominal pre-mixed test flame and guidance《火险相关试验 第2部分：试验法 第4段 第1页：1kw预混剂火焰试验，标准尺寸和指南》.pdf

上传人：brainfellow396
2人阅读
NBN-EN 60695-2-4 0-1994 1875 Fire hazard testing Part 2 Test methods Section 4 sheet 0 Diffusion type and premixed type flame test methods《判定火灾危险的试验 第2部分：试验方法 第4节 第0活页：扩散型和预混型燃烧试验方.pdf 2

NBN-EN 60695-2-4 0-1994 1875 Fire hazard testing Part 2 Test methods Section 4 sheet 0 Diffusion type and premixed type flame test methods《判定火灾危险的试验 第2部分：试验方法 第4节 第0活页：扩散型和预混型燃烧试验方.pdfNBN-EN 60695-2-4 0-1994 1875 Fire hazard testing Part 2 Test methods Section 4 sheet 0 Diffusion type and premixed type flame test methods《判定火灾危险的试验 第2部分：试验方法 第4节 第0活页：扩散型和预混型燃烧试验方.pdf

上传人：brainfellow396
3人阅读
NBN-EN 60688-1993 9375 Electrical measuring transducers for converting a c electrical quantities to analogue or digital signals《交流电量转换成模拟或数字信号用电测量传感器》.pdf 2

NBN-EN 60688-1993 9375 Electrical measuring transducers for converting a c electrical quantities to analogue or digital signals《交流电量转换成模拟或数字信号用电测量传感器》.pdfNBN-EN 60688-1993 9375 Electrical measuring transducers for converting a c electrical quantities to analogue or digital signals《交流电量转换成模拟或数字信号用电测量传感器》.pdf

上传人：brainfellow396
2人阅读
NBN-EN 60687-1993 3125 Alternating current static watt-hour meters for active energy (classes 0 2 S and 0 5 S)《流有功瓦时计（精度0 2S和0 5S级）》.pdf 2

NBN-EN 60687-1993 3125 Alternating current static watt-hour meters for active energy (classes 0 2 S and 0 5 S)《流有功瓦时计（精度0 2S和0 5S级）》.pdfNBN-EN 60687-1993 3125 Alternating current static watt-hour meters for active energy (classes 0 2 S and 0 5 S)《流有功瓦时计（精度0 2S和0 5S级）》.pdf

上传人：brainfellow396
1人阅读
NBN-EN 60682-1994 1875 Standard method of measuring the pinch temperature of quartz-tungsten-halogen lamps《测定卤钨石英灯收缩温度的标准方法》.pdf 2

NBN-EN 60682-1994 1875 Standard method of measuring the pinch temperature of quartz-tungsten-halogen lamps《测定卤钨石英灯收缩温度的标准方法》.pdfNBN-EN 60682-1994 1875 Standard method of measuring the pinch temperature of quartz-tungsten-halogen lamps《测定卤钨石英灯收缩温度的标准方法》.pdf

上传人：brainfellow396
0人阅读
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