部件名称
Coupling for casing and tubing
Specification for casing coupling
API 5CT 4-1/2" to 20"
Steel grade for casing coupling
J55, K55, L80,N80, P110
Thread type for casing coupling
STC, LTC, BTC
Specification for tubing coupling
API 5CT 1.9" to 4-1/2"
Steel grade for tubing coupling
K55, J55, L80, N80, P110
Thread type for tubing coupling
EUE, NUE, STC, LTC, BTC, Premium thread