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GB/T 1551-2009 Test method for measuring resistivity of monocrystal silicon (USD) via email in 1-3 business day VALID
GB/T 32573-2016 Silicon powder—Determination of total carbon content—Infrared absorption method after combustion in an induction furnace (USD) via email in 1-3 business day VALID
GB/T 6616-2009 Test methods for measuring resistivity of semiconductor wafers or sheet resistance of semiconductor films with a noncontact eddy-current gauge (USD) via email in 1-3 business day VALID
GB/T 20228-2006 Gallium arsenide single crystal via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 1553-2009 Test methods for minority carrier lifetime in bulk germanium and silicon by measurement of photoconduetivity decay (USD) via email in 1-3 business day VALID
YS/T 1061-2015 Silicon core for polysilicon by improved siemens method (USD) via email in 1-3 business day VALID
GB/T 31474-2015 Soldering fluxes for high-quality interconnections in electronics assembly (USD) via email in 1-3 business day VALID
GB/T 1554-2009 Testing method for crystallographic perfection of silicon by preferential etch techniques (USD) via email in 1-3 business day VALID
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