... standard:ASME material: stainless qualification: ISO9001 standard stainless steel flange 1/2" to 24" ASME B16.526"to 80 ... BL, RJ, TH, FaceRF, FF, MF, MFM, RJ, TG, RTJ, PressureClass 150Lbs, 300Lbs, 600Lbs, 900Lbs, 1500Lbs, 2500Lbs, /PN6,PN10 ... F70, A182 F12,F11,F22,F5,F9,F91,F1ECT)qualificationISO9001 API CEapplicationPetroleum, chemical, machinery, electric power, shipbuilding, papermaking, ...