Lug Cap

Lug Cap is a type of Vacuum Seal that is designed to seal tightly when there is a vacuum in the space between the top of the package during the process of sterilization or unsealed because the vacuum is necessary for product preservation. Lug Cap will be embossed with spiral or wavy or curved out in horizontal or vertical in series by having the protrusion of a bottle cap or screw-locked with an embossed bottleneck. When sealed, the lid screw will be rotated onto the container which is well compatible with the bottle screw, resulting in a tight seal.