Bottle and jar caps and closures for hermetic sealing of bottles, jars, and canisters. Materials: PP, HDPE, aluminum, tinplate. Screw-on PP/HDPE caps: for PET bottles (28 mm PCO 1881), glass jars (38/43/53/63/82 mm twist-off). With tamper-evident ring. Flip-top caps: for ketchup, sauces, shampoos. Dispensers: pumps, triggers, disc-tops. Aluminum caps: for wine, oil (with tamper evidence). Manufacturing: compression molding (for 1-piece caps, output 1000–2000 pcs/min) or injection molding (for complex screw-on designs). Liner (seal): foamed PE, EPE+PS, induction seal (aluminum membrane sealed by induction heating for hermeticity and tamper evidence). TR CU 005/2011. Tethered cap: EU Directive 2019/904 (SUP) requires non-detachable caps for PET bottles from 2024 to reduce ocean pollution. Designs: strap hinge, side tether, top tether. Transition to tethered caps requires mold and capping equipment modification. Induction sealing: aluminum membrane on the neck sealed by electromagnetic field for 100% hermeticity and tamper evidence. For pharmaceuticals, baby food, oil. Documentation: drawing, specification, TR CU 005/2011, leak test protocol. Quality certificate, TR CU, certificate of conformity. Bulk supplies within Russia and for export. Technical consultation.