478 20mm spout cap products are offered for sale by suppliers on Alibaba.com, of which lids, bottle caps & closures accounts for 80%.
A wide variety of 20mm spout cap options are available to you, such as non spill, non-refillable and child-proof.You can also choose from as, stainless steel and composite material 20mm spout cap,as well as from gray 20mm spout cap