1.plastic caps 2.Material:PE,PP. 3.Size:18mm, ... 20mm,24mm,28mm,32mm,38mm,45mm 4.Use:packing with pills,liquilds bottles. Features:1.plastic ... caps2.Material:PE,PP3.Size:18mm,20mm,24mm,28mm,32mm ... Defending against high temperature and pressure5.Excellent raw material and scientific conditioning6.Flexible range of capacity ...