SIS SS-ISO 6311-1981 Road vehicles - Brake linings - Internal shear strength of lining material - Test procedure《道路车辆 制动衬面 衬面材料的内切变强度 试验程序》.pdf

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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

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SIS SS-ISO 1919-1989 Road vehicles M14 x 1 25 spark-plugs with flat seating and their cylinder head housing《道路车辆 M14x1 25平座冲击火花塞和汽缸盖安装座》.pdf

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