线芯；纯铜芯<br>Core; pure copper core<br><img src="https://img.alicdn.com/imgextra/i1/713464357/TB2r3_Snf6H8KJjy0FjXXaXepXa_!!713464357.jpg" align="absmiddle" class="img-ks-lazyload"><img align="absmiddle" src="https://img.alicdn.com/imgextra/i1/713464357/TB2bUv7X46I8KJjSszfXXaZVXXa_!!713464357.jpg" class="img-ks-lazyload"><img align="absmiddle" src="https://img.alicdn.com/imgextra/i3/713464357/TB2I3f9X_nI8KJjy0FfXXcdoVXa_!!713464357.jpg" class="img-ks-lazyload"><img align="absmiddle" src="https://img.alicdn.com/imgextra/i3/713464357/TB2GIZbX26H8KJjSspmXXb2WXXa_!!713464357.jpg" class="img-ks-lazyload"><img align="absmiddle" src="https://img.alicdn.com/imgextra/i4/713464357/TB2c5r4X0fJ8KJjy0FeXXXKEXXa_!!713464357.jpg" class="img-ks-lazyload"><img align="absmiddle" src="https://img.alicdn.com/imgextra/i4/713464357/TB2gzH.X8DH8KJjSspnXXbNAVXa_!!713464357.jpg" class="img-ks-lazyload"><img align="absmiddle" src="https://img.alicdn.com/imgextra/i1/713464357/TB2VKXGc0fJ8KJjy0FeXXXKEXXa_!!713464357.jpg" class="img-ks-lazyload"><img align="absmiddle" src="https://img.alicdn.com/imgextra/i3/713464357/TB2YIz9XZbI8KJjy1zdXXbe1VXa_!!713464357.jpg" class="img-ks-lazyload"><img align="absmiddle" src="https://img.alicdn.com/imgextra/i4/713464357/TB2rLgXX_vI8KJjSspjXXcgjXXa_!!713464357.jpg" class="img-ks-lazyload"><img align="absmiddle" src="https://img.alicdn.com/imgextra/i4/713464357/TB2hZY9XZbI8KJjy1zdXXbe1VXa_!!713464357.jpg" class="img-ks-lazyload"><img align="absmiddle" src="https://img.alicdn.com/imgextra/i1/713464357/TB2uTMaX3nH8KJjSspcXXb3QFXa_!!713464357.jpg" class="img-ks-lazyload"><img align="absmiddle" src="https://img.alicdn.com/imgextra/i3/713464357/TB2t7_9X3fH8KJjy1zcXXcTzpXa_!!713464357.jpg" class="img-ks-lazyload"><img align="absmiddle" src="https://img.alicdn.com/imgextra/i2/713464357/TB2w0b9XZbI8KJjy1zdXXbe1VXa_!!713464357.jpg" class="img-ks-lazyload"><img align="absmiddle" src="https://img.alicdn.com/imgextra/i4/713464357/TB2dVQiX3DD8KJjy0FdXXcjvXXa_!!713464357.jpg" class="img-ks-lazyload"><img align="absmiddle" src="https://img.alicdn.com/imgextra/i3/713464357/TB2wz2.XZnI8KJjSspeXXcwIpXa_!!713464357.jpg" class="img-ks-lazyload"><img align="absmiddle" src="https://img.alicdn.com/imgextra/i3/713464357/TB2Q224X8DH8KJjSszcXXbDTFXa_!!713464357.jpg" class="img-ks-lazyload"><img align="absmiddle" src="https://img.alicdn.com/imgextra/i1/713464357/TB2KI4pcPgy_uJjSZTEXXcYkFXa_!!713464357.jpg" class="img-ks-lazyload"><img align="absmiddle" src="https://img.alicdn.com/imgextra/i3/713464357/TB2WxT8X9YH8KJjSspdXXcRgVXa_!!713464357.jpg" class="img-ks-lazyload"><img align="absmiddle" src="https://img.alicdn.com/imgextra/i3/713464357/TB2ubr_X22H8KJjy1zkXXXr7pXa_!!713464357.jpg" class="img-ks-lazyload">