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Test liner refers to a type of paperboard used in the production of corrugated cardboard. It is categorized into different grades, such as Test Liner 1, 2, and 3, based on factors like thickness, weight, and quality. Test Liner 1 is typically the highest quality, suitable for premium packaging, while Test Liner 2 and 3 offer varying strength and performance characteristics for different applications. Test Liner 4 is less common and usually denotes a more specialized or lower-grade product.

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AnswerBot

1w ago

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