... '' Aerosol Metered spray can valve :1) Stem: plastic, metal 2) Dosage:25ul,35ul,50ul,75ul,100ul,120ul,150ul 3) Use: Air ... either golden coating or transparent coating2) Stem: plastic, metal/brass3) Dosage: 25ul, 35ul, 50ul, 75ul, 100ul, 120ul, 150ul 4) Actuator: L ...