The role and requirements of tinplate metal lug cap coatings, the metal material is tinplate, and the metal packaging materials of the top and bottom covers can be tinplate, chrome-plated iron and aluminum, except that aluminum will not rust, tinplate and chrome-plated will rust when exposed to moisture, The use of coatings can isolate metal materials from contact with the outside world, avoid scratches on metal substrates, and prevent corrosion factors in food from eroding substrates.
The role of tinplate metal lug cap coating:
a. container protection
b. decoration, brand promotion
c. food preservation
d. help paint iron processing and forming.
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