It was found that Interlocking blocks with decoration surface side is beautiful, according to a use of the material surface side. Interlocking blocks and value-added. The interlocking blocks without decoration cost $5 profit 4 baht.9 baht earnings per day, and 1400 baht the interlocking blocks with surface finishing 1 side the production cost 13 baht earnings 10 baht per sale of 23 baht and earnings per day, 1500) and interlocking blocks with surface finishing 2 side in the production costs 16 baht profit 12 baht price per unit 28 baht earnings per day, and 1 440 baht.
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