api5000We are a API 6A flange manufacturer,API 6A Type 6B 5000 psi(34.5 MPa) Weld Neck RTJ Flange,API 6 B 3000 psi WN RTJ Flange,API 6BX 10000 PSI Weld Neck Flange,API weld neck flangeSpecialized API 6A Flanges Manufacturer, API 6A 6B And 6BX Flanges, American Petroleum Institute Standards. We are exporting Api 6a Flanges, API Adapter Flanges,