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| 008 | 260224s2018 xxu ing | ||
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| 245 | 0 | 0 | _aPDC bit technology evolves to 4D cutters |
| 260 |
_a _b _coct. 2018 |
||
| 270 | _a18/12/2018 ; 18/12/2018 | ||
| 300 | _a1 p. ; 49-50 | ||
| 581 | _a10 | ||
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_aRahmani, Reza _958175 |
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