... Metal 2)Dosage:25,35,50,75,100ul,120ul,150ul 3)Use:Air freshener 4)Size:1'', 20mm Aerosol spray valves ... , Continuous tinplate aerosol valves, Air freshener spray valves, 1'' Aerosol Metered spray can valve :1) Stem: plastic, metal 2) Dosage ... : tinplate with either golden coating or transparent coating2) Stem: plastic, metal/brass3) Dosage: 25ul, 35ul, 50ul, 75ul, 100ul, 120ul, ...