All these items are produced by digital CNC machines, then the quality and precision can be ensured accordingly. Features: 1) Material: solid brass2)Surface treatment: Acid washing3)Working pressure: No more than 150PSI; Working temperature: -20 to 120 degree Centigrade; 4)Before delivery, all the items will be strictly tested for its working pressure, leakage, surface finishing and thread test.5 ...