Brass Parts,Processing Copper Brass Parts,5 Axis Brass Titanium Machine,5 Axis Brass Titanium Cnc Shenzhen Yuheng Precision Machinery Co., Ltd. , https://www.ypcncmachining.comThis method can adapt to the complex shape of the ore body. (Hebei of copper ore method was used.) When the first deep level caving in Mine, and then to the space formed by deep level as the free surface, the deep vertical Blasting. In this way, the ore of the local ore body can be recovered. 