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链接无效，重新到谷歌申请了一个，还要再添加吗？
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“系统定义”在那里？

团购设置中常用设置

There are many on the Internet details of how to identify silicone wristbands  material approach, but these methods are too professional, is also used by some professional predicate, so that some outsiders is difficult to understand it. Fast silica gel with some simple, and easy to understand way to introduce: silicone bracelet to identify the material, and I hope you better understand:
       Method 1: Get out your lighter, hand rings lit with a lighter after cutting, hand ring is white smoke when burned, no taste, but also white ash after combustion, and no other impurities, which is pure silica. Conversely, if the less any of the above, it is possible that silica was mixed with other impurities.
       Method 2: For a number of unscientific online "from the look, feel different," explained Recognition
1) "fake silicone wristbands easily deformed, XB energy bracelet, while the silicone rubber will feel really good rebound, pulled hard enough permanent deformation is relatively small."
Explanation: The number of silicone material that is hard to distinguish, with the appearance of the variant to determine whether it is easy to fake, is unscientific. Bracelet extrusion conditions exist in the delivery way, through a period of extrusion, hand ring is a variant of normal,silicone wristbands, but the silicone has some flexibility, as long as a few will pull back. If, after a period of time had not squeezed the hand of deformation ring, bracelet this general situation is mixed with some impurities, so that the hardness and elastic bracelet lose their function, it will not be deformed, such as income made bracelet friend After arrival, such as squeezing the hand over some of deformation did not ring, it should pay attention to whether these silicone wristbands material has been adulterated.
2) "Bonus smooth sand surface, silicone rubber if the surface is not really special treatment, then hand feels will feel more smooth, because the surface layer there is a layer of grease-like substance."
Explanation: The general hands in the ring in the mold before production will have been brushed or smooth, so I will not hand ring is a layer of fatty substances. Such as the mold surface without treatment, only a rough hand ring, and not feel smooth, fat-like substance within the meaning of the Internet, but die without treatment and with machine oil only, such as the bracelet with a layer of grease-like material, this bracelet for the substandard products.
3) "sticky silicone wristbands surfaces to dust, impurities like fine hair."
Explanation: silicone bracelet silicone is used to produce environmentally friendly, will not use the silicone with a sticky product, so the bracelet is not easy to stick dust, impurities like fine hair.
       Method 3: comparison with the price of the most simple method
       Online prices are mixed, by 5000 the following amounts to calculate the price quoted online is basically an in between 0.25 to 0.5 yuan. However, according to the pure silica material in which a reasonable fee for processing the normal, the normal price should be is between 0.37 to 0.45 yuan. So ring in the procurement of hand, should adopt more moderate prices, not just the pursuit of low prices of products. Note: The larger the number, the lower the price, which is caused by the production cost reasons, but should also shop around, should be applied at a moderate price.
http://www.chinasiliconewristbands.com