Sintropac
加铜铁粉; 铁铜混合粉末
🗣️ 情景例句
If you want to have this job, you'll need to fully prepare for the interview.
如果你想得到这份工作，你得好好准备一下面试。
Out of debt, out of danger.
无债一身轻。
Zhang Jun did best of all.
张军在三人中跳得最高。