In practice this is a physical characteristic of the cans and canned foods, so know how to test the quality checking each canister tin coating of Tin plate. Two types of canned experiments, which is from the laboratory and canned, canned fruits, canned products, trade emblems, Mali. Both cans found at the trial to bring strength and good quality. Examining the physical characteristics of the sample products, canned food, canned food. Mixed fruit cocktail, in syrup, lasut longan Malee coat There are the usual characteristics and quality of the internal coating tin cans with a Copper sulfate solution from cans laboratory found that changes the color of the Copper sulfate solution after khutkrapong only canned fruits, canned products, trade emblems, Mali has changed the color of the solution from blue became Red, both before and after khutkrapong scrape where color changes caused by slurry coating substances inside metal cans of cans to make fall react with solvents.
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