1) Design and manufacture: API 6D 2) Inspection and test: API 598 3) Face-to-face or end-to-end dimensions: ANSI B16.10 4) Connection end: ANSI B16.5 or B16.25 5) Pressure-temperature class: ANSI B16.34 6) NPS: 2"-24" 7) Pressure: class 150lbs-,500lbs 8) Material: WCB, WCC, LCB, LCC, WC6, WC9, C5, C12, CF8, CF8M, CF3, CF3M, CF8C, CN7M Packing: Plywooden case