Duxatech manufactures couplings with seamless steel pipes under API 5CT quality standards.
Couplings are manufactured under requirements of tubing, casing, line pipe with diameters of 1/2" and 9 5/8", under API 5CT regulations.
API 5CT / ISO 11960 Couplings:
Diameter from 2 3/8" to 13 3/8"
Thread Types: NUE/EUE/STC/LTC/BTC
NPT Couplings
Series: 3000 & 6000
Diameter from 1/4" to 4"