At present, each kind of metal is brought home appliances production even more. This is because metal is strong and durable design or manufacture a variety of appliances and can be used with any other material or metal thing, well, it is a component of table, Chair, bed, iron window grills. Cabinet sliding door screens etc, because there are a lot of metal hardness. When metal production or repair must take the heat for cutting and metal connections. The manufacturer or repair metal work, so must have knowledge and understanding. In metal working, as well as to protect them from the dangers that may occur while performing tasks.
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