2007
Muri Kanama 2007, yashoye imari mu ishyirwaho rya batatu mu musaruro umwe wa zinc alloy, ni ukuvuga amahugurwa yari asanzwe apfa, hamwe n'imirongo 8 yose, hamwe buri kwezi umusaruro wa miliyoni 50 z'ingano kandi ukoreshwa buri kwezi toni zirenga 240 za zinc.