2274 30mm aluminium bottle cap products are offered for sale by suppliers on Alibaba.com, of which lids, bottle caps & closures accounts for 74%.
A wide variety of 30mm aluminium bottle cap options are available to you, such as non spill, non-refillable and child-proof.You can also choose from as, zinc alloy and aluminum foil 30mm aluminium bottle cap,as well as from gray 30mm aluminium bottle cap