
| API series | LTC, STC, BTC, EUE, NUE, XC |
| TP series | TPEX, TPCQ, TPCQE, TPNF, TPJC, TPFJ, TPG2, TPQR |
| BG series | BGC, BGT1, BT-FJ, BGT2, BGBC, BGT3 |
| HSM series | HSM-1, HSM-2 |
| CB series | HQSC1, HQST1, CBS3 |
| WsP series | WSP-1T, WSP-2T, WSP-3T, WSP-4T |
| JFE series | FOX, IB |
| TSH series | 3SB, Hydril CS, Hydril PH6 |
| VAM series | Vamtop, NewVam, VamFJLand OTTM, OTTG, TMK-FMC, NSCC, HUNTING-APEX |
Room 703 Building B, Greenland center, Hi-tech development Zone Xi'an, Suav teb
86-13609153141