Our aluminum cap have two type, aluminum screw cap and aluminum pilfer proof cap.
Aluminum Screw Cap
Strengths: Easy operation manually, no special Capping machine needed; Flexible for small Order quantity.
Weakness: Simple close and open, no extra protection to avoid pilfer; Risky for loose;
Sealed way: Manually
Aluminum pilfer proof cap
Strengths: Pilfer proof. Must destory cap before open.Suitable for capping line for big quantity order. Cap thread applied by bottle thread, cap will fit bottle 100% & Will be in same tightness.
Weakness: Need capping machine to work; need big quantity
Sealed way: Manual Or Automatic
Automatic Capping Machine Manual Capping Machine