Discussion on Matrix Hardness of Impregnated Bit[J]. COAL GEOLOGY & EXPLORATION, 1988, 16(5): 64-67.
Citation:
|
Discussion on Matrix Hardness of Impregnated Bit[J]. COAL GEOLOGY & EXPLORATION, 1988, 16(5): 64-67.
|
Discussion on Matrix Hardness of Impregnated Bit[J]. COAL GEOLOGY & EXPLORATION, 1988, 16(5): 64-67.
Citation:
|
Discussion on Matrix Hardness of Impregnated Bit[J]. COAL GEOLOGY & EXPLORATION, 1988, 16(5): 64-67.
|