Zero harm's training that everyone needs to pay attention, because on matters of security in enterprises. Even though some of it may seem trivial, but if leave was not reported in danger can occur, such as using a table to work together, which is a total of many makes of rice on the table. In addition, it is not a เบีบย. Also produces a lot of dust, which causes respiratory disease. A different stain, it is a source of germs as well.
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