... 4 2,Surface:nickel,brass,chrome 3,Handle:long steel hanlde 4,Material:steel. Stainless steel ball valve1, Material Valve body stem ... , Working medium Water, gas, non-corrosive liquid6, Handle Steel handle Technical Characteristics:1. Ball valve is produced according to ... ) is solid, glossy and shiny3. Stem: brass(CW614N, CW617N)4. Fastening washer: Teflon5. Handle (lever): iron, aluminum, steel 6. ...