JB/T 7097-2008
铜铋铝触头材料技术条件
Specification for copper-bismuth-aluminium electric contact material
2008-03-12
JB/T 9550-2011
铜铋银触头材料技术条件
Technical specification for copper-bismuth-silver electrical contact materials
2011-12-20
T/CEC 935-2024
石墨烯铜钨电触头材料技术条件
2024-10-18
JB/T 5336-2008
铜钨电触头材料用钨粉技术条件
Specification for tungsten powder for copper-tungsten electric contact materials
2008-03-12