Since most consumers are not expert in this area, face an array of hardware on the market of products, compete hard to tell just from the appearance and functionality. In this regard, H?fele Xu Wenyu, director of marketing, said the product is good or bad hardware, materials accounted for a large part of it. The material is good or bad for consumers, does have considerable difficulty to identify. He introduced three rapid identification methods: Look brand is well-known. Because maintaining a brand's reputation to be more difficult than recreating a new brand. However, do not easily believe that the printing of various German brands, Italian brands, American brands, many with no history of a new brand, are all affiliated products; weigh the product weight. This is not the way. Same specifications, if the quality is relatively heavy, at least that producers compare with excellent; see the details. http://www.feidawatch.com