Introducing the unparalleled sub adapter of drill-class production technology from Changsha DTH Drill Construction Machinery Co., Ltd. Experience a seamlessly integrated production system boasting an array of advanced electro-hydraulic forging hammers and a sophisticated controlled-atmosphere furnace heat treatment production line. Our state-of-the-art Seiko CNC machine tool production equipment ensures precision and excellence. Each component undergoes meticulous CNC machining, with crucial technologies under CNC control, guaranteeing top-tier product quality and unwavering reliability.











1. Are you exact manufacturer or just trading company?
We are both,we have our own factory. And also have many long-relationship factories.
2.What is your minimum order quantity?
Our MOQ are 1pc or 1 complete set, the price may rely on the order quantity.
We are welcome your sample order to testing our quality.
3. Can you accept OEM & ODM?
Yes, both of them are acceptable,.Please tell us your requirements or design drawings kindly.
As we have our own R&D team and the team leader is Dr.Zhao mingchun who has been always
in the material research and drawing design of drilling tools for 25 years.And he had designed
the world's biggest top hammer bit and DTH hammer bit, highly praised by the users.
4. How about Packing
Using ply-wooden cases and pallet for exporting to protect products and avoid the damagement during transportation.
Also, we can customize package according to your special requests.
5. How about the delivery time?
It depends, generally it takes about 15-25day. If have stocks, Usually only 5-10 days if in stock.
6. Can I have a visit to your factory before the order?
Sure, welcome, kindly contact us for address details and time schedule.