https://mp.weixin.qq.com/s?__biz=MjM5NTYxMTc4MQ==&mid=2653104273&idx=1&sn=eb4ef6a1ba90824f757c178d97cbb13c&chksm=bd225d7b8a55d46dac46fe4ab0c9c584ee41e5f9970f234ca3f99b8dd506912bdefff30970ec&token=1132638853&lang=zh_CN#rd
【行业活动】关于举办压铸技术冬季培训班（总第26期）的通知
2020-12-23 10:54
