金(jin)剛(gang)石(shi)粉,立(li)方氮化(hua)硼粉,金(jin)剛(gang)石(shi)聚晶,金(jin)剛(gang)石(shi),立(li)方氮化(hua)硼復合片。Industrial diamond, CBN (Cubic Boron Nitride), PCD and PCBN