Pillar-Polycrystalline Diamond Bit[J]. COAL GEOLOGY & EXPLORATION, 1988, 16(4): 58-62.
Citation:
|
Pillar-Polycrystalline Diamond Bit[J]. COAL GEOLOGY & EXPLORATION, 1988, 16(4): 58-62.
|
Pillar-Polycrystalline Diamond Bit[J]. COAL GEOLOGY & EXPLORATION, 1988, 16(4): 58-62.
Citation:
|
Pillar-Polycrystalline Diamond Bit[J]. COAL GEOLOGY & EXPLORATION, 1988, 16(4): 58-62.
|