... 3. copper rod, copper ring fire fighting equipment.landing valve, fire hydrant,fire hydrant valve1. Products Name:Sprinkler2. wide ... , centigrade Sidewall Horizontal Sprinkler ZSTBS-15,68 degree, centigrade concealed type sprinkler ZSTDY-15, 68 degree, centigrade 3. grade ... type: SNZW65-I, DN655.double-valve and double-outlet type: SNSS65, DN656.double-valve and double-outlet pressure pressure reducing ...