Sinodrills coupling sleeve specification:

1. Packing details : Wooden box& plywood case

2. Handling time for an order
Based on order quantity, normally it takes 15-30 days for production.
Only 2 or 3 days if we have stock on your request size.

3. Shipping way
Sample order: We suggest Express like DHL/UPS/TNT/FEDEX/EMS or by air.
Bulk order: We suggest by airway or by sea shipment .

FAQ:

Q1: Are you a manufacturer?

Yes, we own 3 plants to manufacture various drilling products about 17 years . 

We are a one-stop supplier of full range of rock drilling products.

Q2: Are your products high quality ?

Yes .Our customers made the test reports proved that.If you need more information,please contact  us.

Q3: What kind of payment terms do you offer and what is your best payment terms?

We offer different payment terms, including T/T, D/A, D/P, L/C and O/A, etc.

Our best payment terms is 120 days after shipping date for our distributors and sole distributors.

Q4:Do you offer warranty on your products?

Yes, for different products we offer different warranty that cover all manufacturing defects in materials and workmanship.

The longest period of warranty is 2 years after shipping date.

Q5: Do you offer OEM service?

Yes, we can offer OEM service if you have regular requirement.

Q6: What qualifications do you have?

Till 2020, we have following qualifications:

1)      ISO 9001:2008 management system;

2)      3AA2 credit rating by Dun & Bradstreet;

3)      Honoring Contract and Keeping Promise Enterprise by AIC.

4)      EC examination certificate for self-drilling anchor bars.

5)      2 invention patents & 6 utility patents.

Q7: Where did you export ?

Till 2020 we have exported to 103 countries.