API 5000What does it refer to? 1

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 flangeAPI 5000 Flange Dimensions Industries and Applications Widely used in the industries. Pumps, Valves, and vessels in manufacturing and food processing. Pipe