US business leaders cry foul over tariffs

China's role in production stressed as public hearing starts

One executive displayed a pink helmet that she said would be increasingly unavailable if tariffs were raised, while another said: "Help me keep my company alive."

Representatives from a broad cross-section of United States' businesses and industrial groups began to voice their concerns on Monday, the first of six days of public hearings on the impact of a fresh round of tariffs on Chinese products.