Gas automatic fire extinguishing system; rain alarm valve system; wet alarm valve system; foam fire extinguishing system; sprinkler series; fire pump junction series; hydrant series; fire alarm bell, fire emergency lights, fire emergency sign lights series; manual fire alarm button series; Cara OK fire audio-video alarm switch. Apparatus; High-rise life-saving slower; Wooden, steel fire doors, fire coil series; Fire-proof paint series; Various portable, push-cart fire extinguishers; Suspended automatic fire extinguishing devices, etc.
