model=Thread diameter（d)-Bar diameter（ds)-Polished rod length（L)

The values in the table below are for reference only and there will be errors.

Bar diameter

hanks for coming to our shop,Hoping you have a happy shopping Trip.

The delivery time,usually order will be sent out within 1-5 days,In case of special circumstances Also will be sent out using the fastest speed. Because we are resting on Sunday ,so may not be able to respond to your information in time,Really sorry.

1. After You placing the order, if you found the tracking information shows "Shipment pickup failure", please do not worry, the logistic information will be updated in 3-10 days.

2. But If you found that the logistic information shows "shipment cancel", Please contact us, We will check it and give you a New Right Tracking Number.

3. If you find your product was broken , goods part missing after receiving the package, please contact us and send photos to us, so that we can Solve it or resend to you quickly.

4. If you do not received the package in 60 days. (90 days for Brazil /Chile etc), The package may be get lost on the way or other customs reasons. please contact us first rather than opening the dispute.

5. ALI Economy class shipping with favorable shipping fee but no delivered information which can only track before leaving China.If you have not received the goods within 60 days, please contact the destination port first. If not, please contact customer service for follow-up.

6.If you are satisfied with our products and services, please leave your positive feedback and 5 stars. and 5 stars for the detailed classification of your request.

Best Regards!