"Black gas" to save time, the price is cheap, but there is a big security risk. Some "black gas dealer greed, will waste cylinder and then sold to the residents, the cylinder easily caused by gas leakage to cause deflagration accident, on the use of persons who are residents of safety constitutes a great threat. Also some "black gas dealers to sell more bottles of gas, in the houses had inverted bottle gas, can easily lead to gas leakage caused by detonating accident, endanger the safety of surrounding residents.

The relevant departments of the government has been taking measures to combat the "black gas", if consumers find the black gas, you can call the following telephone report:

Gas Industry Association: 83288315, Nanshan District Construction Bureau: 22055717, 26542250