This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
从一个元件供应商那买的，裸盘！附图
这也不好说啊, 由于现在的造假水平越来越高, 通常我们已经很难看外观来判断了
基本要靠渠道来保证
