7. Glass pot: there are toughened glass and non toughened glass, the latter does not say that the market is not allowed to have (in addition to three no products stolen on the market). This type of style is the most popular, the fastest update, easy to eliminate. If the glass basin is often washed with soap or facial cleanser, it is easy to form a layer of dirt in the basin, which is difficult to clean (to clean with vinegar or neutral cleaning agent, or toothpaste). In addition, if the toughened glass has a self explosion rate, it is 100% for consumers if it is one tenth of a million for manufacturers.
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