1.UL Listed Fire Sprinkler 2.5mm or 3mm glass bulb 4.57,68,79,93 deg.C Fire Sprinkler 5.Brass,Chrome,White Finished ROUCHTEC UL LISTED FIRE SPRINKLERRouchtec Fire Sprinklers are UL listed and widely sold all over the world because of reliable quality, competitive prices and professional services. Fire Sprinkler, Fire Sprinkler System, Fire Sprinkler Parts, All types of Fire Sprinklers**TECHNICAL ...