In Germany, US tariffs are on the minds of exhibitors at the world's biggest industrial technology fair. This week's Hanover Fair, which has attracted more than 4,000 exhibitors from around 60 countries, takes place as US President Donald Trump gears up to announce a wave of "reciprocal tariffs", ratcheting up global trade tensions even further. "The US tariffs affect many of our customers, especially those in the automotive and steel sectors. And, of course, we can only do well if our customers are doing well," says the CEO of the company Westfalen, Thomas Perkmann. IMAGES AND SOUNDBITES