... --- 2Cr13,38CrMoAI,25Cr2MoV,F304,F316,F304L,F316LSealing Face --- 13Cr,STL,PTFE,NylonPacking --- Flexible Graphite,Enhanced,Graphite ,SFB/260,PTFEWorking Temperature --- ≤200 ... ,Steam,Peroleum Propoducts,Nitric acid,Acetic acid,Urea ANSI gate valve