1. API Q41Y-300LB American standard flange ball valve
2. X47W balanced oil seal plug valve
3. BJ41W jacket insulation through stop valve
4. ZDAOX43 track cock valve
5. ZDALX43 American Standard lifting plug valve
6. API X43F-150LB American Standard ferrule type plug valve
7. API X43F-300LB American Standard ferrule type plug valve
8. X44W asphalt special insulation plug valve TAG：