... : solid brass2)Surface treatment: Acid washing3)Working pressure: No more than 100PSI Working temperature: -20 to 120 degree Centigrade4) ... delivery, all the items will be strictly tested for its working pressure,leakage,surface finishing and thread test5) High quality ... each hose ,Durable brass construction Attention:Working pressure: No more than 100PSI Working temperature: -20 to 120 degree.About ...