NF A87-013-2-1999 Welding and allied processes Joint preparation Part 2 submerged arc welding of steels 《焊接和相关工艺 接头的预处理 第2部分 钢的埋弧焊》.pdf

相关资源

IRS 70778-2-2018 Recommendations for determining the carrying capacity and fatigue risks of existing metallic railway bridges.pdf

IRS 70712-2018 Rail defects.pdf

IRS 50596-6-2018 Conditions for coding intermodal loading units in combined transport combined transport lines and wagons.pdf

IRS 50596-5-2018 Transport of road vehicles on wagons-Technical Organisation-Conveyance of semi-trailers with P coding or N coding on recess wagons.pdf

IESNA TM-23-2017 Lighting Control Protocols.pdf

IESNA RP-2-2017 Recommended Practice for Retail Lighting.pdf

ITU-R RAPPORT M 766-2 FRENCH-1990 Feasibility of frequency sharing between the GPS and other services《全球定位系统和其他服务之间的频率共享的可行性》.pdf

ITU-R RAPPORT M 763-3 FRENCH-1990 Signal level variation due to multipath effects and blockage by ship-s superstructure in maritime mobile-satellite service lin.pdf

ITU-R RAPPORT M 739-1 FRENCH-1986 Interference due to intermodulation products in the land mobile service between 25 and 100 MHz《由于互调产物在陆地移动服务25和100 MHz之间产生的干扰》.pdf

ITU-R RAPPORT M 319-7 FRENCH-1990 Characteristics of equipment and principles governing the assignment of frequency channels between 25 and 100 MHz for land mob.pdf

猜你喜欢

GOST R 51049-2008 Fire equipment Pressure fire hoses General technical requirements Test methods《消防设备 压力消防软管 一般技术要求 检测方法》.pdf

GOST R 51050-1997 Deflection yoke systems Methods of measurement and control of parameters《偏转磁轭系统 参数的测量与控制方法》.pdf

GOST R 51052-2002 Automatic water and foam fire extinguishing installations Wet and dry systems alarm stations General technical requirements Test methods《自动供水和泡沫灭火装置 潮湿和干燥系统报警站 一般.pdf

GOST R 51056-1997 Alloyed and high-alloyed steel Atomic emission spectrometry method of determination of tungsten and molibdenum《合金与高合金钢 原子发射光谱法测定钨元素与钼元素》.pdf

GOST R 51057-2001 Fire fighting equipment Portable fire extinguishers General technical requirements Test methods《消防设备 便携式灭火器 一般技术要求 测试方法》.pdf

GOST R 51060-1997 Instruments for measurement of optical average power of fibre optics transmission systems General technical requirements《光纤传输系统的平均光功率测量仪 一般技术要求》.pdf

GOST R 51061-1997 Low biterate speech transmission systems Speech quality characteristics and their evaluation《低码率语音传输系统 语音质量特性及其评估》.pdf

GOST R 51062-2011 Sod fuel peat for heating purposes Specifications《加热用草皮燃料泥炭 规范》.pdf

GOST R 51063-1997 Inert powder Methods of testing《惰性粉末 测试方法》.pdf