March 15, 1987 (on February 16 Dingmao), Harbin flax explosion accident. March

1987 15 days at 2 39 minutes, Harbin flax Salisbury Ma, before spinning, spinning three workshops with major explosion occurred, was initially identified 56 deaths and injured 179 people. Plant and equipment destroyed.
this explosion is caused flax dust more than a factor of safety.