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GB/T 26074-2010 Germanium monocrystal—Measurement of resistivity-DC linear four-point probe (USD) via email in 1-3 business day VALID
GB/T 33165-2016 Quantitative analysis method of centre segregation for high carbon wire rod (USD) via email in 1-3 business day VALID
YB/T 153-2015 Standard diagrams for macrostructure and defects in high quality structural steel continuous casting blank (USD) via email in 1 business day VALID
GB/T 4334.1-2000 Method of 10 per cent oxalic acid etch test for stainless steels (USD) via email in 1-3 business day ABOLISHED
GB/T 31309-2020 Calculation of electron vacancy number in cast superalloys (USD) via email in 1-3 business day TO BE VALID
SY/T 0599-1997 Sulfide stress cracking resistant metallic material requirements for gas surface equipment (USD) via email in 1-3 business day ABOLISHED
GB/T 19346.1-2017 Amorphous and nanocrystalline alloys measurement methods—Part 1:AC magnetic properties by the use of ring specimens (USD) via email in 1-3 business day VALID
YS/T 37.3-2007 High pure germanium dioxide-Determination of arsenic content-Graphite furnace atomic absorption spectrophotometric method via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 3658-2008 Methods of measurement of a.c. magnetic properties of magnetically soft materials (USD) via email in 1-3 business day VALID
GB/T 3246.1-2012 Inspection method for structure of wrought aluminum and aluminum alloy products Part 1 : Inspection method for microstructure (USD) via email in 1-3 business day VALID
GB/T 24177-2009 Standard test methods for characterizing duplex grain sizes (USD) via email in 1-3 business day VALID
GB/T 2522-2007 Methods of test for the determination of surface insulation resistance and lamination factor of electric sheet and strip (USD) via email in 1-3 business day ABOLISHED
GB/T 20831-2007 Methods of assessment of temperature capability of inter laminar insulation coatings of electrical sheet and strip (USD) via email in 1-3 business day VALID
GB/T 32186-2015 Test methods of cleanliness of aluminium and aluminium alloy ingots (USD) via email in 1-3 business day VALID
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