China’s factory growth likely inched up from a 1-1/2-year low in January, helped by a slight pick-up in momentum the previous month, but the bounce is not expected to last due to unsteady exports and slowing investment, a Reuters poll showed. The data, to be released on Feb. 1 alongside the official services PMI, will set the tone for what’s likely to be seen in the world’s second-largest economy this year: a contained slowdown that will show growth cooling further from a 24-year trough.