标题: ASTM B 8-2004 Standard Specification for Concentric-Lay-Stranded Copper Conducto [打印本页] 作者: alldoing1 时间: 2018-5-17 12:59:51 标题: ASTM B 8-2004 Standard Specification for Concentric-Lay-Stranded Copper Conducto
ASTM B 8-2004 Standard Specification for Concentric-Lay-Stranded Copper Conductors, Hard, Medium-Hard, or Soft
硬、中硬或软同心绞合铜导线标准规范 作者: admin 时间: 2018-5-17 16:58:58