Detailed Product Description Product Description Size: 2 to 40 Pressure: Class 150LB to Class 300LB Material: WCB, LCB, CF8, CF8M, CF3, CF3M Design &. Manufacture Standard: API 609, BS 5155 Face to face standard: API 609, BS5155 End connection stardard: ASME B16.5, DIN2543-2545 Test standard: ISO5208, BS6755 Structure type: Centre Line Pattern, Double Eccentric Pattern, Three Eccentric Pattern, ...