11. In addition, McLaren built Britain's first diesel-powered road roller in 1927 using their own engine. 12. His oil-free compressor was widely used on tractors, graders, road rollers and similar earthmoving equipment. 13. In 1972 it introduced a 14-tonne road roller model, powered by a Skoda Diesel engine. 14. It opened its research laboratory in 1948 and manufactured the first vibratory road roller in 1953. 15. Its main product range was vibratory road rollers . 16. An old Aveling and Porter road roller built by the famous Strood factory stands in the grounds. 17. Product lines included graders, forklifts, road rollers , crawlers, and power units incorporated into products by other companies. 18. It initially prospered, but with the sinking market for large dumper trucks and road rollers , it declined. 19. ROC tank crews who had depleted their ammunition used their tanks as road rollers to crush PLA infantry. 20. All that survives is his assassinates " it by dropping it in the path of a road roller .
