We are a high-tech enterprise which devotes to development, research and production of drilling equipment, powder metallurgy material and super-hard ....
We are a high-tech enterprise which devotes to development, research and production of drilling equipment, powder metallurgy material and super-hard ....
We are a high-tech enterprise which devotes to development, research and production of drilling equipment, powder metallurgy material and super-hard ....
Make bit, hole reamer and drilling tool pass smoothly, and easy to remove bushing. Bushing also can be put into hard ground without going askew. There ...
Make bit, hole reamer and drilling tool pass smoothly, and easy to remove bushing. Bushing also can be put into hard ground without going askew. There ...
http://www.corebit.cnSynthetic Diamond Core Bits Characteristics: fast aging and big coring rate, etc. it is applicable for special formation which is ...