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GB/T 31854-2015 Test method for measuring metallic impurities content in silicon materials used for photovoltaic applications by inductively coupled plasma mass spectrometry (USD) via email in 1-3 business day VALID
GB/T 31475-2015 Requirements for solder paste for high-quality interconnections in electronics assembly (USD) via email in 1-3 business day VALID
GB/T 12964-2003 Monocrystalline silicon polished wafers via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 17170-1997 Test method for deep level EL2 concentration of undoped semi-insulating monocrystal gallium arsenide by measurement infrared absorption method via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 11093-2007 Liquid encapsulated czochralski-grown gallium arsenide single crystals and as-cut slices (USD) via email in 1-3 business day VALID
GB/T 35305-2017 Monocrystalline gallium arsenide polished wafers for solar cell (USD) via email in 1 business day VALID
GB/T 20230-2006 Indium phosphide single crystal via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 30656-2014 Polished monocrystalline silicon carbide wafers (USD) via email in 1-3 business day VALID
GB/T 26067-2010 Standard test method for dimensions of notches on silicon wafers (USD) via email in 1-3 business day VALID
GB/T 1558-2009 Test method for substitutional atomic carbon concent of silicon by infrared absorption (USD) via email in 1-3 business day VALID
GB/T 12963-1996 Polycrystalline silicon via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 29504-2013 300 mm monocrystalline silicon (USD) via email in 1-3 business day VALID
GB/T 14844-2018 Designations of semiconductor materials via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
YS/T 543-2006 Fine aluminum-1% silicon wire for semiconductor lend-bonding (USD) via email in 1-3 business day ABOLISHED
GB/T 14139-2019 Silicon epitaxial wafers (USD) via email in 1-3 business day VALID
GB/T 16595-2019 Specification for a universal wafer grid (USD) via email in 1-3 business day VALID
GB/T 26071-2018 Monocrystalline silicon wafers for solar cells (USD) via email in 1-3 business day VALID
GB/T 12963-2009 Specification for polycrystalline silicon (USD) via email in 1-3 business day ABOLISHED
GB/T 29055-2012 Multi-crystalline silicon wafer for solar cell (USD) via email in 1-3 business day ABOLISHED
GB/T 24575-2009 Test method for measuring surface sodium,aluminum,potassium,and iron on silicon and epi substrates by secondary ion mass spectrometry (USD) via email in 1-3 business day VALID
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