Recently, the Shenzhen subway has automatic glass burst, glass burst can be a great danger to public safety. Close paragraph of time, the weather in Shenzhen is sometimes hot and sometimes cold, the temperature difference between day and night is relatively large, glass by thermal expansion and contraction can easily lead to burst, according to experts, tempered glass explode oneself rate is three percent, therefore, tempered glass explode occurs from time to time, but tempered glass subway by drawing materials, even burst only in crushing a spider gateway, does not make the glass fall, will not cause harm to the public.

There are more than one hundred metro station in Shenzhen iron, tens of thousands of pieces of toughened glass, each piece of glass all require regular maintenance, such as the need to replace the glass to the manufacturers a predetermined, lead to the replacement of glass is slow, also hope that domestic toughened glass members of the public can purchase to the regular factory, distinguish Chu Gang glass and non tempered glass, so on their own family. The security guarantee.