Japanese automakers including Toyota, Nissan and Mazda are investigating whether falsely labelled products supplied by Kobe Steel have impacted the safety of their cars. Kobe Steel, Japan's third-biggest steelmaker, said staff falsified data related to strength and durability of some aluminum and copper products used in aircraft, cars and maybe even a space rocket.
About 4 percent of the aluminum and copper products shipped from September 2016 to August 2017 were falsely labelled as meeting the specifications requested by customers, Kobe Steel said.
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