Detailed Product Description Product Description Size:2 -40 Pressure: Class150LB-300LB Material:WCB, LCB, CF8,CF8M,CF3,CF3M,WC6,WC9,C5,C12 Design & Manufacture Std.: API 609, BS 5155 Face to Face Std.: API 609, BS 5155 End Connection Std.: ASME B16.5, DIN2543-2545 Test Standard: ISO5208,BS 6755 Structure Type: Center Line Pattern, Double Eccentric Pattern, Three-Eccentric Pattern, Multiple layers ...