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JB/T 6237.7-2008 Test methods for chemical analysis of silver powder for electric contact material—Part 7:Determinatiln of moisture level (USD) via email in 1-3 business day VALID
JB/T 7780.5-1995 (USD) via email in 1-3 business day ABOLISHED
JB/T 4107.2-2014 Chemical Analyses Method for Electrical Contact Materials - Part 2: Determination of Copper Content in the Copper Tungsten (USD) via email in 1 business day VALID
JB/T 7097-1993 via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
JB/T 9552.1-1999 Methods for chemical analysis of copper-chromium-zirconium alloys The determination of copper by electrolytic method (USD) via email in 1-3 business day VALID
JB/T 6237.2-2008 Test methods for chemical analysis of silver powder for electric contact material—Part 2:Determinatiln of copper content (USD) via email in 1-3 business day VALID
JB/T 4107.1-2014 via email in VALID please email coc@codeofchina.com for quotation
JB/T 7778.3-1995 via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
JB/T 4107.4-2014 via email in VALID please email coc@codeofchina.com for quotation
GB/T 24273-2009 Test method for electrical properties of electrical contact materials (USD) via email in 1-3 business day VALID
JB/T 7778.1-2008 Test methods for chemical analysis of silver-tungsten carbide electric contact material-Part1:Determintion of silver content (USD) via email in 1-3 business day VALID
JB/T 4107.4-1999 Chemical analyse method for electrical contact materials Determination of silver contert in the silver-tungster (iodimetry) via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
JB/T 9550-2011 Technical specification for copper-bismuth-silver electrical contact materials via email in VALID please email coc@codeofchina.com for quotation
JB/T 7776.6-1995 via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 5587-2003 Basic shapes,dimensions,symbols and notations of silver based electrical contancts via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
JB/T 7778.2-1995 via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
JB/T 7778.1-1995 via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB 13397-1992 Technical specification for silver-metaloxide electrical contacts by alloy internal oxidation method via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
ZB K 14003.3-1988 via email in ABOLISHED please email coc@codeofchina.com for quotation
JB/T 7598-1994 via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
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