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JB/T 6237.1-2008 Test methods for chemical analysis of silver powder for electric contact material—Part 1:Determination of silver content (USD) via email in 1-3 business day VALID
JB/T 6237.9-2008 Test methods for chemical analysis of silver powder for electric contact material—Part 9:Determinatiln of nitrate content (USD) via email in 1-3 business day VALID
GB 13140.5-2008 Connecting devices for low-voltage circuits for household and similar purposes - Part 2: Particular requirements for twist-on connecting devices (USD) via email in 1-3 business day VALID
GB/T 24272-2009 Test method for mechanical torque rate of spiral coils of thermostat metal (USD) via email in 1-3 business day VALID
JB/T 7777.5-2008 Test methods for chemical analysis of silver-tin oxide-indium oxide electric contact material-Part 5:Determination of nickel zinc and indium contents (USD) via email in 1-3 business day VALID
JB/T 7776.5-2008 Test methods for chemical analysis silver-cadmium oxide electric contact material—Part 5:Determination of bismuth content (USD) via email in 1-3 business day VALID
JB/T 7777.4-2008 Test methods for chemical analysis of silver-tin oxide-indium oxide electric contact material-Part 4:Determination of zinc content (USD) via email in 1-3 business day VALID
GB/T 8320-1987 Copper-tungsten and silver-tungsten electrical contacts via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
JB/T 7778.3-2008 Test methods for chemical analysis of silver-tungsten carbide electric contact material-Part3:Determintion of overall carbon content (USD) via email in 1-3 business day VALID
JB/T 6326.8-2008 Test methods for chemical analysis of Ni-Cr and Ni-Cr-Fe alloy—Part 8:Determination of sufi content (USD) via email in 1-3 business day VALID
JB/T 7598-2008 Resistance welding electrodes alloys of Cu-Cr-Zr (USD) via email in 1-3 business day VALID
JB/T 7117-2008 Technical specification for high resistance alloys(Φ<0.20mm)of electrical heating (USD) via email in 1-3 business day VALID
JB/T 7774.5-2008 Test methods for chemical analysis of silver-zinc oxide electric contact material -Part 5:Determination of magnesium content (USD) via email in 1-3 business day VALID
JB/T 7130-2008 Test method mechanical torque rate of spiral coils of thermostat metal (USD) via email in 1-3 business day VALID
JB/T 6237.8-2008 Test methods for chemical analysis of silver powder for electric contact material—Part 8:Determinatiln of pH of aqueous solution (USD) via email in 1-3 business day VALID
JB/T 7780.2-2008 Methods for measuring mechanical and physical properties of wires for rivet contacts-Part 2:Determination of hardness (USD) via email in 1-3 business day VALID
GB 13961-2003 Safety requirements for electrical supply track systems for luminatires via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 8320-2017 (USD) via email in 1-3 business day VALID
GB 13140.1-2008 Connecting devices for low-voltage circuits for household and similar purposes - Part l: General requirements (USD) via email in 1-3 business day VALID
GB/T 24297-2009 The test method for thermal deflection rate of spiral and helix coils of thermostat bimetal (USD) via email in 1-3 business day VALID
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