fire fighting equipment 1.ISO and CCC certified 2.1/2", 3/4" 3.brass alloy, chrome plating 4.fast delivey Fire Sprinkler Features:1. different types: pendant type, upright type, ordinary type, sidewall horizontal type, concealed type2.Specifications:(a) Rated working pressure: 12 Bars(1.2Mpa)(b)Airproof test pressure: 24 Bars(2.4Mpa)(c) Strength test pressure:30Bars(3MPa)T-ZSTX20 (pendent): ...