焊接式天然单晶金刚石刀具
brazed natural diamond tool
天然金刚石镶齿钻头
insert natural diamond bit
大单晶CVD金刚石
large single crystal CVD diamond
单晶CVD金刚石
single crystal CVD diamond
单晶金刚石刀具
single crystal diamond cutter
monocrystalline diamond cutting tool
monocrystal diamond tool
single crystal diamond tool
含硼金刚石单晶
boron-doped diamond
Single crystal diamond with boron
人造单晶金刚石
synthetic single crystal diamond
金刚石单动双管
double core barrel with diamond
金刚石单动双管钻进工艺
diamond drilling technique of single power with double pipe