Australia, June 7 (Reuters) - The China economic stimulus machine is already firing up the prices of key commodities such as iron ore, steel and copper even if there remain some doubts about how rapid, and how effective, its boosting measures will be.
Benchmark spot 62% iron ore for delivery to north China , as assessed by commodity price reporting agency Argus, climbed to $145.85 a tonne on Monday, the highest in a month and 15.2% above the recent low of $126.60 on May 18.
