Durable Forged Brass Check Valve. 1.Material:brass body/stem,zinc/plastic handle. 2.Medium:water,oil,gas. 3.Certification: ... Check Valve.1.Model No. : LDM-CV042.Material: Body Brass,Hpb57-3,Hpb59-3,CW614n,CW617n, CuZn39pb3,,CuZn40pb2,CW3770,DZR. Stem Brass Stem ... : Brass yellow.8.Standard: GB,DIN,ANSI,EN,BS,UIN,JIS.9.Certification: CE10.Guaranty: 3years guaranty.OEM Service for Bulk ...