aluminium-plastic caps,flip off cap,flip off cap 1)13mm,15mm,18mm,20mm,30mm. 2)Aluminum cap,PVC painted top 3)COA:YBB00082005 Aluminum- plastic caps,Flip off cap,Flip off seal1) Aluminum sealed with plastic flip off top 2) For glass antiboitic bottles and glass infusion bottles, etc.3) Specification: 13mm, 15mm, 18mm 20mmand 30mm. Aluminum-plastic cap