... pressure: 150lb, 300lb, 400lb, 600lb,900lb, 1500lb,2500lb type specificationitem: carbon steel slip on flangesize: 1/2' to 48'standard: ANSI ... , threaded flange, ring joint flange, etc. OEM to special requirement.pipe fittings: steel pipes, elbow, tee, cross, reducer, flange, cap, lap ... joint stub end, steel pipes, socket fittings, etc. standard carbon steel flange