2003年3月20日，作为中国城市公共交通学会专题之一，低地板公交客车技术交流会在苏州举行。来自中国城市公共交通学会的会员单位、德国ZF集团、德国公共交通协会、香港九龙巴士公司、苏州ZF公司的近100人参加了专题活动。德国ZF公司客车部WolfgangSchilha总裁专程来到中国，并 March 20, 2003, as one of the topics of China’s urban public transport society, low-floor bus bus technology exchange was held in Suzhou. Nearly 100 people from member organizations of China National Institute of Public Transport, German ZF Group, German Public Transport Association, Hong Kong Kowloon Bus Company and Suzhou ZF Company attended the special event. Wolfgang Schilha, president of the German ZF bus company, made a special trip to China