German Chancellor Angela Merkel shakes hands with a humanoid robot at the booth of IBG at Hannover Messe, the trade fair in Hanover, Germany, April 23, 2018.

Visitors inspect a robot at the booth of KUKA at Hannover Messe, the trade fair in Hanover, Germany, April 23, 2018.

A spider robot is surrounded by journalists at the booth of Festo during a media tour at the world's biggest industrial fair, "Hannover Fair", in Hanover, Germany, April 22, 2018.

Image used for illustrative purpose. A visitor fist bumps a humanoid robot at the booth of IBG at Hannover Messe, the trade fair in Hanover, Germany, April 23, 2018.

A giant screw is seen at the Hannover Messe, the trade fair in Hanover, Germany April 23, 2018.

Employees use Microsoft HoloLenses to demonstrate a repair of a car brake at the booth of Microsoft during a media tour at the world's biggest industrial fair, "Hannover Fair", in Hanover, Germany, April 22, 2018.

Visitors pass a cogwheel at the Hannover Messe, the trade fair in Hanover, Germany April 23, 2018.

Visitors pass a cogwheel at the Hannover Messe, the trade fair in Hanover, Germany April 23, 2018.

A man uses VR glasses during a media tour at the world's biggest industrial fair, "Hannover Fair", in Hanover, Germany, April 22, 2018.

German Chancellor Angela Merkel fist bumps with a humanoid robot as Mexican First Lady Angelica Rivera de Pena and Mexican President Enrique Pena Nieto look on, at the booth of IBG at Hannover Messe, the trade fair in Hanover, Germany, April 23, 2018.

Visitors pass an E-Bike at the booth of Siemens at the Hannover Messe, the trade fair in Hanover, Germany April 23, 2018.

German table tennis player Dimitrij Ovtcharov plays against table tennis robot "Forpheus" at the world's biggest industrial fair, "Hannover Fair", in Hanover, Germany, April 22, 2018.

Parts of a humanoid robot are seen on a bike during a media tour at the world's biggest industrial fair, "Hannover Fair", in Hanover, Germany, April 22, 2018.

Cogwheels are seen during a media tour at the world's biggest industrial fair, "Hannover Fair", in Hanover, Germany, April 22, 2018.