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GB/T 1979-2001 STANDARD diagrams for macrostructure and defect of structural steels 60.0 via email in 1 business day valid
GB/T 22638.2-2016 Test methods for aluminium and aluminium alloy foils―Part 2:Determination of pinhole 90.0 via email in 1~3 business day valid
GB/T 30537-2014 Superconductivity - Measurements for Bulk High Temperature Superconductors - Trapped Flux Density of Large Grain Oxide Superconductors 280.0 via email in 1~5 business day valid
GB/T 19346-2003 Measuring method of magnetic properties at alternative current for amorphousand nanocrystalline soft magnetic alloys 90.0 via email in 1~3 business day superseded
GB/T 22638.9-2008 Test methods for aluminium and aluminium alloy foils - Part 9: Determination of hydrophilic property 105.0 via email in 1~3 business day abolished
GB/T 22638.5-2016 Test methods for aluminium and aluminium alloy foils--Part 5: Determination of wettability by brushing 100.0 via email in 1~3 business day valid
GB/T 22638.10-2008 Test methods for aluminium and aluminium alloy foils - Part 10: Determination of mass per unit area (surface density) of coatings 105.0 via email in 1~3 business day superseded
GB/T 22638.2-2008 Test methods for aluminium and aluminium alloy foils - Part 2: Determination of porosity 105.0 via email in 1~3 business day superseded
GB/T 5252-2006 Germanium monocrystal - inspection of dislocation etch pit density 105.0 via email in 1~3 business day valid
GB/T 11073-2007 Standard method for measuring radial resistivity variation on silicon slices 210.0 via email in 1~3 business day valid
DB37/T 3142-2018 Technical regulation of Phased-array Ultrasonic Testing for welded joints of small diameter pipe via email in business day valid
SY/T 0059-1999 Technical specification of controlling weld hardness of steel equipment to prevent sulfide stress cracking 360.0 via email in 1~3 business day valid
GB/T 22638.3-2016 Test methods for aluminium and aluminium alloy foils--Part 3: Determination of stickiness 100.0 via email in 1~3 business day valid
GB/T 22638.1-2016 Test methods for aluminium and aluminium alloy foils―Part 1:Determination of thickness 150.0 via email in 1~3 business day valid
GB/T 18876.3-2008 Standard practice for determining the metallographical constituent and inclusion content of steels and other metals by automatic image analysis - Part 3: Determining the carbides rating in steels by automatic image analysis and stereology 255.0 via email in 1~3 business day valid
GB/T 4326-2006 Extrinsic semiconductor single crystals measurement of Hall mobility and Hall coefficient 210.0 via email in 1~3 business day valid
GB/T 26284-2010 Experimental method for flux inclusions and oxide in wrought magnesium alloys 110.0 via email in 1~3 business day valid
GB/T 22638.9-2016 Test methods for aluminium and aluminium alloy foils Part 9: Determination of hydrophilec property 70.0 via email in 1~3 business day valid
GB/T 22638.6-2016 Test methods for aluminium and aluminium alloy foils--Part 6: Determination of direct current resistance 160.0 via email in 1~3 business day valid
GB/T 19922-2005 Standard test methods for measuring site flatness on silicon wafers by noncontact scanning 150.0 via email in 1~3 business day valid
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