719 结果为 '电极丝'
950207002
带锌伽玛的黄铜涂层电线扩散
950207009
950207017
950207023
950207024
950208009
带双伽玛的黄铜涂层线 - β锌扩散
950208010
950208011
950208012
950208013
950208014
950402001
黄铜线