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Persona de contacto Ms. marry
Fortune center, Century city, Guiyang, Guizhou
| Drill Collar Number | O.D. | I.D. | Length (mm) |
Bevel Diameter | Ref bend g Strength ratio | ||
| (mm) | (in) | (mm) | (in) | ||||
| NC****1 | *9.4 | 3 1/8 | *1.8 | 1 1/2 | ***0 | *6.2 | 2.*7:1 |
| NC****5(2 3/8 IF) | *8.9 | 3 1/2 | *8.1 | 1 1/2 | ***0 | *2.9 | 2.*2:1 |
| NC****1(2 7/8 IF) | **4.8 | 4 1/8 | *0.8 | 2 | ***0 | **0.4 | 2.*3:1 |
| NC****7 | **0.6 | 4 3/4 | *0.8 | 2 | ***0 | **4.7 | 2.*8:1 |
| NC****0(3 1/2 IF) | **7.0 | 5 | *7.2 | 2 1/4 | ***0 | **1.0 | 2.*8:1 |
| NC****0 | **2.4 | 6 | *7.2 | 2 1/4 | ***0 & ***0 | **4.5 | 2.*9:1 |
| NC****0 | **2.4 | 6 | *1.4 | 2 *3/*6 | ***0 & ***0 | **4.5 | 2.*4:1 |
| NC****2 | **8.8 | 6 1/4 | *7.2 | 2 1/4 | ***0 & ***0 | **9.2 | 2.*1:1 |
| NC****2(4IF) | **8.8 | 6 1/4 | *1.4 | 2 *3/*6 | ***0 & ***0 | **0.0 | 2.*3:1 |
| NC****5(4IF) | **5.1 | 6 1/2 | *7.2 | 2 1/4 | ***0 & ***0 | **4.8 | 2.*6:1 |
| NC****5(4IF) | **5.1 | 6 1/2 | *1.4 | 2 *3/*6 | ***0 & ***0 | **4.8 | 3.*5:1 |
| NC****7(4IF) | **1.4 | 6 3/4 | *7.2 | 2 1/4 | ***0 & ***0 | **9.5 | 3.*8:1 |
| NC****7(4 1/2 IF) | **1.4 | 6 3/4 | *1.4 | 2 *3/*6 | ***0 & ***0 | **9.5 | 2.*7:1 |
| NC****0(4 1/2 IF) | **7.8 | 7 | *7.2 | 2 1/4 | ***0 & ***0 | **4.7 | 2.*4:1 |
| NC****0(4 1/2 IF) | **7.8 | 7 | *1.4 | 2 *3/*6 | ***0 & ***0 | **4.7 | 2.*3:1 |
| NC****2(4 1/2 IF) | **4.2 | 7 1/4 | *1.4 | 2 *3/*6 | ***0 & ***0 | **9.5 | 3.*2:1 |
| NC****7 | **6.8 | 7 3/4 | *1.4 | 2 *3/*6 | ***0 & ***0 | **5.3 | 2.*0:1 |
| NC****0 | **3.2 | 8 | *1.4 | 2 *3/*6 | ***0 & ***0 | **0.1 | 3.*2:1 |
| 6 5/8 REG | **9.6 | 8 1/4 | *1.4 | 2 *3/*6 | ***0 & ***0 | **5.7 | 2.*3:1 |
| NC****0 | **8.6 | 9 | *1.4 | 2 *3/*6 | ***0 & ***0 | **2.6 | 3.*7:1 |
| 7 5/8 REG | **1.3 | 9 1/2 | *6.2 | 3 | ***0 & ***0 | **3.8 | 2.*1:1 |
| NC****7 | **7.6 | 9 3/4 | *6.2 | 3 | ***0 & ***0 | **2.8 | 2.*7:1 |
| NC*****0 | **4 | *0 | *6.2 | 3 | ***0 & ***0 | **7.3 | 2.*1:1 |
| 8 5/8 REG | **9.4 | *1 | *6.2 | 3 | ***0 & ***0 | **6.7 | 2.*4:1 |
