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GB/T 43321-2023
Recommended brazing procedure specification for copper and copper alloys
GB/Z 29014.100-2024
切削刀具数据表达与交换 第100部分:参考字典的定义、原则和方法
Cutting tool data representation and exchange—Part 100: Definitions, principles and methods for reference dictionaries
GB/Z 29014.4-2024
Cutting tool data representation and exchange—Part 4: Reference dictionary for adaptive items
GB/Z 29014.5-2024
Cutting tool data representation and exchange—Part 5: Reference dictionary for assembly items
GB/T 4893.4-2023
Test of surface coating of furniture—Part 4:Determination of adhesion by cross-cut
GB/T 14910-2023
Plain bearings—Technical requirements on backings for thick-walled multilayer bearings





