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Based on the specific needs of tinplate cans for food packaging, offset printing is the most suitable printing method for most food packaging. It can provide high-precision printing effects, bright colors, and is suitable for mass production. At the same time, the cost of offset printing is relatively low, which can meet the needs of most food companies.

Epoxy resin coating can not only prevent metal from direct contact with food, avoid metal corrosion or contamination of food, but also extend the shelf life of food. Therefore, the inner wall coating of many food and beverage cans contains BPA.