UK engineers back forecasts thanks to weak sterling

(Reuters) - Engineers Spirax-Sarco Engineering Plc , Spectris Plc and Rotork Plc said on Tuesday their full-year results would meet market expectations as the three companies got most of their revenue from outside the United Kingdom. A weak sterling and cost-reduction programs helped these British engineering firms keep their forecasts intact amid declining global industrial demand. Engineering companies have been struggling as customers in the oil, gas and mining industries cut orders and wait