... 3.2 certificate API 6A Flange,api 6a thread flange ,api standard flange 1. Type: API 6A Flange,api 6a thread flange,api standard flange2. Material ... flange3. Standard: ANSI, JIS, BS, DIN, UNI, EN, GB, AWWA, API, MSS,4. Size: 15 mm to 5000 mm5. Pressure: 150bls ... Ton/month12. Payment terms: T/T .L/C at sight... API 6A Flange