年表作成・共有サービス - pastport

https://www.greatdrillbit.com/great-bit-series/

We, Cangzhou Great Drill Bits Co. Ltd., specialized in R&D, design, production, and sales of various best drill bit for rock. The drill bits size from 3" to 26", HDD Hole opener from 8``- 48``, Such as PDC bit, Roller bit, Tricone bit, PDC Coring bit, Bi-center bits, Hole opener, etc. The Company consistently adheres to the concept of industrial development to promote energy development, adhered to innovative drive, scientific development, and is one of the largest scale companies in Asia for PDC bit and Tricone bit, Hole opener manufacturer.

Our PDC bit production line includes Matrix body PDC bit and Steel body PDC bit. Tricone bit is mainly Three cone bits, and according to the drilling formation different, we have TCI bit and Steel tooth bit available. In some HDD(Horizontal directional drilling ) project, we have Rock reamers for hard formation. Our Roller bit core barrel is widely used for piling foundation too.

We offer different types of rock drill bits for sale and can recommend the right type according to your drilling request.

Why Choose Great Good Quality rock drill bits for sale:

Two manufactures: New manufacture with 40,000 square meters in Hebei Province, very near to Beijing, and build our own R&D Exchange Center in Beijing.

Government gives us a High-tech Firm Authories Certification, we got API Spec7-1 Quality Control Standard. ISO9001:2008 Quality Management System.ISO14001:2004 Environment Management System.

Mazark machines are imported from Japan.

Strong designs, engineers, production, sales and after-sales service team.

OEM&ODM service with confidentiality agreement.

We are strictly quality control our PDC bit, Tricone bit, Hole opener quality, The precision of CNC lathes is ±0.01mm, it can meet all the turning requirements. And after turning a certain numer of pieces, we must change the tool of lathes to make sure the precision of machines.

According to the manufacturing standard the quality department tests every process strictly and carefully.

As one of most professional drill bit manufacturers in China, we strictly control the whole production process, and we inspected the finished drill bits, we can also make several design changes according to the customer's feedback, and finally, ensure the customer's excellent drilling effect.

Meanwhile, we can provide our engineer service in the field.