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GB/T 6609.26-2004
氧化铝化学分析方法和物理性能测定方法 有效密度的测定 比重瓶法
Chemical analysis methods and determination of physical performance of alumina--Determination of absolute density--Pycnometer method
GB 20664-2006
Limitation concentration of natural radioactivity in non-ferrous metal ores and concentrates products
GB 19455-2004
Safety code for inspection of hazardous properties for dangerous of civil explosives
GB/T 19662-2005
Industrial automation systems-Manufacturing Message Specification Terminology
GB/T 19674.2-2005
Connections for general use and fluid power Ports and stud ends with thread-Stud ends with elastomeric sealing(A type and type E)
GB/T 6609.5-2004
Chemical analysis methods and determination of physical performance of alumina--Determination of sodium oxide content
GB/T 20268-2006
Specification for collecting and processing in-car navigable geographic data