Worker checks pipeline at oil refinery in Lanzhou

 
Worker checks pipeline at oil refinery in Lanzhou
A worker checks the pipeline at an oil refinery in Lanzhou, capital of the Gansu province April 19, 2006. Record high crude oil prices above $70 a barrel could drive the United States and China -- the world's two biggest oil users -- to seek common ground on thorny energy issues when Chinese President Hu Jintao visits Washington this week. REUTERS/Stringer