国际b站免费极速观看

类型：纪录片 地区：印度 年份：2013

主演：内详  

导演：内详  

更新：2024-05-05 12:40:07

简介： He Hongwei explained: Originally, the patent ownership of this alloy was shared by Huihuang Group and the Academy of Sciences. However, later, Huihuang Group invested in buying part of the ownership from the Academy of Sciences. As a result, it has now become the sole ownership of Huihuang Group. Have it... 详情