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GB/T 4324.15-2008 Methods for chemical analysis of tungsten - Determination of magnesium content - The flame atomic absorption spectrometry and inductively coupled plasma atomic emission spectrometry 120.0 via email in 1~3 business day valid
GB/T 4187-1984 Tungsten rods 60.0 via email in 1~3 business day valid
GB/T 6150.9-2009 Methods for chemical analysis of tungsten concentrates—Determination of copper content—Flame atomic absorption spectrometry 120.0 via email in 1~3 business day valid
GB/T 4191-1984 Ceriated tungsten electrodes for inert gas arc welding and plasma welding and cutting 45.0 via email in 1~3 business day valid
YS/T 428-2012 Niobium Pentoxide 90.0 via email in 1~3 business day valid
GB/T 4325.22-2013 Methods for chemical analysis of molybdenum—Part 22:Determination of phosphorus content—Molybdenum blue spectrophotometry 120.0 via email in 1~3 business day valid
GB/T 25955-2010 Scraps of tantalum and tantalum alloy 180.0 via email in 1~3 business day valid
YS/T 245-1994 Sintered molybdenum alloy mandrels for tube rolling 60.0 via email in 1~3 business day superseded
YS/T 397-2015 Zirconium sponge 165.0 via email in 1~3 business day valid
YS/T 719-2009 Flat magneting sputtering target—Silicon target for optical coating 90.0 via email in 1~3 business day valid
GB/T 6150.2-2008 Methods for chemical analysis of tungsten concentrates—Determination of tin content—The potassium iodate volumetry and hydrogenate atomic absorption spectrometry 120.0 via email in 1~3 business day valid
GB/T 4325.9-2013 Methods for chemical analysis of molybdenum—Part 9:Determination of nickel content—Dimethylglyoxime spectrophotometry and flame atomic absorption spectrometry 180.0 via email in 1~3 business day valid
GB/T 14842-1993 Niobium rods and bars 90.0 via email in 1~3 business day superseded
GB/T 4325.5-2013 Methods for chemical analysis of molybdenum—Part 5:Determination of antimony content—Atomic fluorescence spectrometry 120.0 via email in 1~3 business day valid
GB/T 26062-2010 Niobium and niobium-zirconium alloy wire 180.0 via email in 1~3 business day valid
YS/T 568.6-2008 Chemical analysis methods for zirconium oxide and hafnium oxide-Determination of titamium content-Diantipyrylmethane spectrophotometric method 90.0 via email in 1~3 business day valid
YS/T 676-2008 Molybdenum-aluminium intermediate alloy 90.0 via email in 1~3 business day valid
YS/T 827-2012 Tantalum Ingot 90.0 via email in 1~3 business day valid
YS/T 913-2013 Zirconium and Zirconium Alloy Dics and Rings 180.0 via email in 1~3 business day valid
GB/T 4324.1-2012 Methods for chemical analysis of tungsten - Part 1: Determination of lead content - Flame atomic absorption spectrometry 120.0 via email in 1~3 business day valid
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