Aluminum cookware was once used to make aluminum products processing machinery, and processed aluminum products are very popular, because aluminum pots and other rust, aluminum layer of dense air will react with oxygen to form an aluminum oxide film, however, scientific evidence aluminum tableware is not suitable for cooking or prolonged storage of acidic, alkaline and salty foods, because acid salt, etc. can be directly etched aluminum surface of the protective film and aluminum products themselves. The study found the precision machining of aluminum products, aluminum elements can damage a person's brain cells. According to the assessment of the World Health Organization, the daily intake of aluminum is specified 0 ~ 0.6mg / kg, where kg refers to a person's weight, that is, a 60kg human intake of 36mg. China's "food additive standard GB2760-2011" stipulates that the residual amount of aluminum is less than or equal to 100mg / kg. Of aluminum in the human body is slowly accumulates, toxicity which causes the slow and difficult to detect, however, once metabolic disorders toxicity occurs, the consequences are very serious. Therefore, we must draw our attention to the price of aluminum products processing, in their daily lives to prevent the absorption of aluminum, reducing the use of aluminum products. Therefore aluminum cookware has been gradually phased out. [3, preheat: thin, small pieces of aluminum generally do not preheat, preheat thickness can be 10 mm ~ 15 mm while, depending on the type of aluminum alloy preheating temperature for 100 ℃ ~ 200 ℃, available oxygen acetylene flame, furnace or other heating blowtorch. Preheat can reduce the deformation of the weldment, reduce porosity and other defects. Aluminum products processing machinery, gold-precision (certified), Bao'an District, aluminum products processing provided by Huizhou Hing Precision Parts Co., Ltd.. Huizhou Hing Precision Parts Co., Ltd. (hzjxbp.com) (www.hzjxbp.com) is an industry leader in Huizhou, Guangdong, the standard mold, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer demand. In the gold-Precision leadership with the staff warmly welcome all inquiries negotiations to create a gold-precision better future.