Sustaining rapid growth is China's economic priority, President Hu Jintao said on Friday as an official survey pointed to a swoon in the all-important manufacturing sector.

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In a sign of official concern that the world's fourth-largest economy is slowing too sharply, the central bank has authorized banks to increase their lending by 5 percent, banking sources told Reuters on Friday. The targeted easing could release around 200 billion yuan ($30 billion) of fresh credit.