BUMPY WEEK: Industrial metal prices fell after new data showed China's economy continued to slow in April. It marked the end of a bumpy week for the metals as investors worried that demand may slump if China and Europe's debt crisis affect global economic growth.

CHINA'S IMPACT: China, the world's second-biggest economy, is a huge importer of commodities from copper and soybeans to oil. There are signs that China's slowdown is hurting demand for oil, industrial components and consumer goods.

PRICE MIX: Prices for gold, oil, wheat, corn and soybeans fell. Natural gas rose.