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 flangeThe API 5000 system is desned for quantitative analysis of small molecules. This application involves measurement of specific molecular weht compounds, usually a drug or metabolite in