K4高风压潜孔冲击器钻头

>> 技术描述：
1、钻头零件号随钻孔直径以及钻孔条件变化
Button Bit part number varies according todrilling diameter and drilling conditions
2、与K4,DHD340A,COP44,QL340,Terranox4兼容
Compatable with K4,DHD340A,COP44,QL340,Terranox 4

应用于：液压掘进钻车