To West Germany's most important postwar trade show swarmed 100,000 buyers from 74 countries. The most conspicuous visitors to the Hannover Industry Fair last week were 70 Russians, the biggest group of top Russian technical experts ever to visit West Germany, who hungrily eyed the finely tooled Ruhr machines and spread the Lorelei song for more East-West trade. Never before were the Red traders so active and abundant. Poland sent 200 engineers; Red China dispatched 30 stonefaced, baggy-trousered representatives to drum up business.
German response was warm. The powerful Federation of Germany Industries...