金(jin)(jin)剛(gang)石粉,立(li)方氮化硼粉,金(jin)(jin)剛(gang)石聚晶,金(jin)(jin)剛(gang)石,立(li)方氮化硼復(fu)合(he)片(pian)。Industrial diamond, CBN (Cubic Boron Nitride), PCD and PCBN