6%by adopting this methods to extrusion silver graphite scraps,and the silver quality accords with IC-Ag99.
采用本工艺回收银石墨边角料中的银,银的回收率达99。
Structural deformation and dynamic mechanisms of the Bayan Har (foreland) basin in the Yinshishan region, Qinghai;
青海银石山地区巴颜喀拉前陆盆地构造变形特征及动力学机制
