fire sprinkler,fire nozzle, spray nozzle, firefighting euqibment, fire safety, sprinkler head,sprinkler,glass bulb sprinkler ISO,CCC certificateMax Working pressure: 3-12barsMaterail :brass or chorme ... packed with 200units in one carton box. There are impact sprinkler, pendent sprinkler, upright sprinkler, water curtain sprinkler,centrifugal sprinkler, etc.