Noise abatement material goes up against the world's loudest train horn. A powerful vacuum assisted climber is pitted against a champion rock climber. The world's hottest blowtorch goes up against a chainsaw that can cut through stone and ...See moreNoise abatement material goes up against the world's loudest train horn. A powerful vacuum assisted climber is pitted against a champion rock climber. The world's hottest blowtorch goes up against a chainsaw that can cut through stone and steel. Written by
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