1.DTH hammers and bits 2.overburden casing drilling syetem 3.symmetrix overburden casing drilling system 4.reverse circulation hammers and bits 5.button bits 6.shank adapter,coupling sleeve 7.parts of drill rigs 8.special related products as customers requirments
| Business Type: | ||
| Address: | Lianfeng County, Hanpu Town, Yuelu Section, Changsha, Hunan, China | |
| City: | Changsha | |
| Zip/Postal: | 410208 | |
| Country: | China |
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