Aluminum screw mist sprayer Material : plastic-al Internal Dia : 12,13, ... ,16,18,20,24,28mm Color : as per yr requirement Aluminum screw sprayerScrew MicrosprayMaterial : plastic-aluSize : 12/410,13/410,14 ... : as per yr requirementDesign : with plastic small or overcap or aluminum capOutput : 0.03-0.05ml/t , 0.075-0.12ml ... tell us . Thanks and have a nice day ! 18-20mm aluminum screw mist sprayer