Construct wildfire with 11

The 4th floor Ran fire, why die or injure so heavy
Net friend:Construct wildfire with 11.15 key figures in Shanghai to compare, this time explosion floor only occurrence is on the 4th floor, why resulted in dead and injured of more than 10 personnels?
Respond to:The explosion is the main reason that makes this time personnel die or injure, the ceiling, well ventilated piping of building crest falls to drop down after the explosion, explosion after, have already produced injury to the human body, these sheet irons that collapse to fall, heavy all of the thing be pressed have already canned not flee for life on these Human bodies, plus explosion after light a fire, produce thick smoke, surround a personnel to run not to come out more, if have of being placed in and exploding central point position, probably in a twinkling have already suffered from injury, if explode impact wave stronger words, probably die on the spot.