... 4) Brass body, zinc handle 5) 5 year Guatancee Brass cartridge faucet(YQ57080B)Process Scheme:Feed—casting—examination—pass—machining—examination ... neutral corrosion test lasting 120 hours.AssembingNeoperl aerator, brass cartridge, solid cartridge nut,horseshoe Working Pressure:8~12bar(0.8~.12Mpa)Max ... -year warranty against leak-proof, under the common conditions. brass cartridge faucet(YQ57080B)