1.stem:plastic,metal 2.dosage:25ul,50ul,75ul,100ul 3.actuator:L-actuator,round actuator We supply all kinds of metering valve and continuous valve1.stem:plastic,metal2.dosage:25ul,50ul,75ul,100ul3.actuator:L-actuator,round actuator4.mounting cup:aluminium with transparent coating metering valve(metered valve,aerosol valve)