... has 57,68, 79 deg for choice Standardt type fire sprinkler Purpose:Sprinkler is an important part of wet-type auto spraying ... district via ductwork, acting as a fire detector and auto sprinkler. In case of fire inside the protective district, when the ... ballφ3 glass ballZSTD-15/6868Red38588037534R1/2ZSTD-15/7979Yellow4967 fire water sprinkler Verified Information This information is Verified by Bureau ...