捣矿机 [矿业] stamp ; crushing mill ; ore mill

单锤捣矿机 single stamp mill

霍尔曼捣矿机 [矿业] Holman stamp

加利福尼亚型捣矿机 [矿业] California stamp ; californian stamp

捣矿机锤头 [矿业] stamp head

捣矿槌 stamp hammer

落锤捣矿机 [矿业] gravity stamp