Main products：
①Tubing（1.9"-4-1/2"）；②Casing（4-1/2"-20"）③Pup Joint ④Coupling ⑤Crossover ⑥Thread processing
Material:J55/K55/N80-1/N80Q/L80/P110/C90/T95/Q125/80S/80SS/90S/90SS/L80-3Cr/L80-9Cr/L80-13Cr
Thread Type:EUE,NUE,LTC,STC,BTC,IF,REG,High gas seal processing.
Long Thread Connection Couplings are short lengths of pipe used to connect 2 joints of casing.They come with painted colour codes on their external surface to indicate their grades.Couplings are manufactured according to API 5CT and 5B specifications.
Contact:Bonnie Xu
Email:BonneXu@dlpoctg.com
Mob/Wechat:86+13602055205
SKYPE:BonnieXu22
Linkedin:BonnieXu
