GB/T 4189-1984
掺杂钨条
Doped tungsten bars
- 实施日期
- 1984-11-01
- ICS 分类
- 77.080
组合使用关键词、标准类型、状态与 ICS 分类,快速定位所需国家标准。
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GB/T 4189-1984
Doped tungsten bars
GB/T 4188-1984
Molybdenum rods
GB/T 4187-1984
Tungsten rods
GB/T 4185-1984
Molybdenum-tungsten alloy bars
GB/T 3771-1983
Conversion of hardness and strength for copper alloys
GB/T 3653.5-1983
Methods for chemical analysis of ferroboron--The chromatographic separation-barium sulfate gravimetric method for the determination of sulfur content
GB/T 3653.2-1983
Methods for chemical analysis of ferroboron--The gasometric method for the determination of carbon content
GB/T 3654.9-1983
Methods for chemical analysisof ferroniobium--The thiocyanate photometric method for the determination of tungsten content
GB/T 3654.5-1983
Methods for chemical analysis of ferroniobium--The molybdenum blue photometric method for the determination of the phosphorus content
GB/T 3654.4-1983
Methods for chemical analysis of ferroniobium--The combustion gravimetric method for the determination of carbon content
GB/T 3654.3-1983
Methods for chemical analysis of ferroniobium--The gravimetric method for the determination of silicon content
GB/T 3654.1-1983
Methods for chemical analysis of ferroniobium--The paper chromatograph-gravimetric method for the determination of niobium and tantalum content
GB/T 3654.10-1983
Methods for chemical analysis of ferroniobium--The EDTA volumetric method for the determination of aluminium content
GB/T 3522-1983
Cold-rolled quality carbon structural steel strips
GB/T 3180-1982
Specification for medium manganese wear-resistant spheroidal iron castings
GB/T 466-1982
Classification of copper
GB/T 1814-1979
Inspection method for steel work fractures
GB/T 340-1976
Non-ferrous metals and its alloys--Code of designation
GB/T 911-1966
Hot-rolled and forged tool steel flats
GB/T 702-1986
Hot-rolled round and square steels--Dimension,shape, weight and tolerance