Tokyo rubber futures tumble

Tokyo� (february 23, 2011) : key tokyo rubber futures tumbled on tuesday, pulled lower with a shanghai market slide on concerns about demand from china, the world's top rubber consumer, while traders turned to physical prices for clues on the market's trend. the benchmark tokyo commodity exchange rubber contract for july delivery settled down 18.2 yen or 3.5 percent at 506.7 yen per kg, posting

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