BUZZ-Keller: Order book growth brings cheer
** British ground engineering contractor Keller up 5.6 pct after co says order book at the end of October c.20 pct higher than the same time last yr
** Co says trading in 4 months to end of October in line with management expectations
** Ytd revenue lower than last yr as a result of lower income from major projects; Operating profit ahead of the same time last yr
** Co says it expects FY results in line with market expectations
** Says US construction market continues to grow steadily, Canada remains very challenging
** European construction markets as a whole remain stable while the outlook in Australia shows no sign of improvement, Keller says
** Stock top gainer on the FTSE All Share Construction & Materials Index
** Three-quarters the stock's 30-day avg daily volume traded by 0940 GMT (Reuters Messaging: noor.hussain.thomsonreuters.com@reuters.net)