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Learn how metal continuous thread caps seal, how they differ from lug caps, when to choose tinplate or aluminum, and how to specify the neck finish, liner, and decoration for your product.
Compare lug caps, metal CT caps, ROPP aluminum caps, and crown caps for glass packaging, including how each seals, common diameters, liner options, and the finish compatibility risks to avoid.
Learn how lug caps seal glass food jars, which liners suit hot-fill and pasteurized products, what codes like RTO and RTB mean, and how to match cap size, torque, and features to your product.
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