API xov hom muaj xws li: BTC (ib nrab ntaiv xov), LTC (ntev round xov), STC (short round thread), NU (TBG unthickening tubing thread), EUE (sab nraud thickening tubing thread), XC (direct casing thread), IJ (kev sib koom ua ke tubing xov) thiab lwm hom API xov.
VAM series thread: NEW VAM, VAM TOP (VAM TOP HT, VAM TOP HC) VAM MUST, VAM ACE, DINO VAM, VAM FJL, VAM TM, VAMSLIJ-II, etc.
JFE Series: JFE FOX, JFE BEAR
Tenaris Series: Tenaris NK3SB, Tenaris ER
Hunting Seal Lock Boss, Hunting Seal Lock HT, Hunting Foob Xauv APEX
Baosteel series khoom: BGT1, BGC
Lwm yam xov xwm patent: Tiangang, WSP-1T, WSP-2T, NSCC, NSCT, thiab lwm yam
