Negotiable
The date of payment from buyers deliver within days
Beijing
Long-term effective
2017-10-04 01:41
52
By certification [File Integrity]
hanfarig(Ms.)


Beijing
No. A2209, Hongsen Building, Jinsuo Road, Yulan Street, Gaoxin District, Zhengzhou, Henan, China (450000)
| Bit type | Main bit size(mm) | Rock coefficient | |
| PDC core drill bit | Single pipe | 75/54.5 94/74 113/89 113/109 153/129 | 1-18 |
| Two-pipes | 75/54.5 94/68 | ||
| PDC center drill bit | Concave 3 wing bit | 60 75 94 113 133 | 1-18 |
| Arc pillar | 60 75 94 113 133 | 4-18 | |
| Many wing scraper | 60 75 94 113 133 133 153 173 190 215 | 1-6 | |
| PDC Indexable drill bit | 153/94 153/113 190/153 190/113 | 1-18 | |