All 3 products from SHANDONG YONGLIJINGGONG PETROLEUM EQUIPMENT CO.LTD.

This pup joint conforms to API 5CT standards for tubing and casing. It is used to adjust the length of tubing or casing strings in oil and gas applications to meet specific well depth requirements.

This high-strength tubing coupling connects sections of tubing in mining and industrial applications. Precision-machined threads ensure a secure, leak-proof connection in high-pressure and corrosive environments.

Casing pipe couplings connect lengths of casing pipe in oil and gas wells. The internal threads of the coupling match the external threads of the casing pipes, providing a secure and leak-proof connection.