China’s factory output growth slumped to an eight-month low in July, while retail sales slowed sharply, raising pressure on policymakers to roll out more stimulus to revive domestic demand and ward off external shocks to the $19-trillion economy.

China's value-added industrial output expanded 5.7 percent year-on-year in July, official data showed on Friday.The growth slowed from a 6.8 percent rise in June, according to data released by the National Bureau of Statistics.