API 5CT couplings are mechanical connectors designed to join two sections of tubing pipe or casing pipe in petroleum industry.
API tubing couplings have two types EUE and NUE
API Casing coupling have three connections LTC, STC and BTC
Premium connections tubing or casing couplings for gas tight connetion oil pipes
Grades for couplings: J55/K55, N80, L80, L80-13Cr, P110
Puyang Zhongshi Group's professional R&D team can produce various quality couplings.
![]()