7 11 12 градусов H25 хвостовик шестигранное сверло

1. Q：Are you manufacturery or trade company?
A:We are manufacturer, has more than 10 years of professional production experience .Products including DTH Hammer and Bit、Drill Pipe Casing System、Tricone Bit、Top Hammer Drill Rod、 Drill Bit、Tapper Button Bit and Rod、 Integral Drill Rod etc.
2.Q: Do you offer warranty on your products?
A: Yes. For different products we offer different warranty that cover all manufacturing defects in materials and workmanship. The longest period of warranty is 6 months after shipping date.
3、Q: How is your quality control?
A: We have our own experienced quality control. There will be strict inspection and testing for every order before shipping out.
4.Q: How long is your delivery time?
A: 1-5days for the products in stock； regular order delivery in 2-3weeks.
5.Q: After Services:
A:(1) Our sales team will response for your question within 24 hours (Holidays included).
(2) Technical Support will be available in any time.
(3)Free replacement will provide once the failure confirmed caused by our product quality.
6.Q:Methods of Payment:
A:We offer different payment terms, including T/T, D/A, D/P, L/C and O/A, etc. You can choose your preferred payment methods before we shipping the goods.
7Q: Do you offer OEM service?
A:Yes, we can offer OEM service if you have regular requirement.
8Q: Where did you export ?
A:Till 2023 we have exported to 60+ countries.