Hunan Diyfia Import and Export Co.,Ltd

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1. Drilling Rig

Drilling construction for high-rise building, highway, railway, bridge, port, harbor work, dam and tunnel.

GY-200-T engineering drill is adopted with hydraulic pressure feeding structure, it can proceed attacking and gyrating drilling, and ...

2. PDC Core Drill Bit Products

PDC(polycrystalline diamond compact) drill bit is a new product after the hot-pressed and electroplated drill bit recent years. with special hith-frequency weldin techniques. PDC of high wear resistant si welded to the body as cutting edges. ...

3. Double Tube Bit Products

Many years of experience combined with recent improvements in technology and manufacturing concepts have resulted in greatly improved drilling performance of impregnated PQ HQ NQ BQ diamond core bits.

1 Application: Used for construction, ...

4. Single Pipe Diamond Core Drill Bit Products

Diamond Core Bits:

Many years of experience combined with recent improvements in technology and manufacturing concepts have resulted in greatly improved drilling performance of impregnated diamond core drill bits for mineral exploration.

Featur ...

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