3425 20mm vial caps products are offered for sale by suppliers on Alibaba.com, of which lids, bottle caps & closures accounts for 56%.
A wide variety of 20mm vial caps options are available to you, such as child-proof, non spill and non-refillable.You can also choose from butyl rubber, ptfe and aluminum 20mm vial caps,as well as from retail, home use, and food shop 20mm vial caps, and whether 20mm vial caps is beverage, food, or medical consumable.