We are specialized manufacturer and exporter for this product in China. We have get the ISO9002 approval in 1997 and seven product items got the UL approval. Our product include: UL angle valve, all kinds coupling & valve, UL fog nozzle, UL foam head, fire hose, foam tank, fire cabinet, UL alarm system ( include retard chamber + water motor gong + alarm valve), sprinkler system, deluge valve and ABC chemical.