Engineer Smiths Group posts fall in underlying FY revenue

(Reuters) - British engineering conglomerate Smiths Group Plc said underlying full-year revenue fell nearly 2 percent on a decline in sales at one of its biggest units. Full-year revenue at its John Crane unit, which makes mechanical seals and other products for customers such as BP Plc, Shell and Chevron Corp, has been lagging as oil producers and explorers cut expenses to combat oil prices. The John Crane unit, which contributed about 28 percent of the group's total revenue for the full year,