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Design Standard: API602,BS5352, ASME B16.34/B16.11/B1.20.1/B16.25 Pressure RatingL Class 150LB-2500LB Temperature Rating: Up to 500℃ Material: A105,LF2, F304, F304L, F316,F16L, F11,F22, etc Size: 1/2″-4″