1. Are you a manufacturer or trading company?
We are both, with a factory and long-term partnerships with other factories.
2. What is your minimum order quantity?
MOQ is 1pc or 1 set; price varies with quantity. Sample orders welcome.
3. Can you accept OEM & ODM?
Yes, we accept both. Provide your requirements or design drawings.
Our R&D team is led by Dr. Zhao Mingchun,
with 25 years in material research and drilling tool design.
He designed the world's largest top hammer and DTH hammer bits, praised by users.
4. How about the delivery time?
Generally 15-25 days; 5-10 days if in stock.
5. Can I visit your factory before ordering?
Sure, welcome! Contact us for address and schedule details.
Audited Supplier 
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