一、前言我国生产自行车已有四十多年的历史,解放前全国只有上海、沈阳、天津三个厂家,品种单一。解放后自行车行业有了突飞猛进的发展,1983年总产量预计可达2400万辆,定点生产厂150多家,品种繁多。按“六五”计划,1985年产量将达到3300万辆。目前我国的自行车产量已居世界首位。由于我国人口众多,工业基础薄弱,在相当长的时期内,自行车仍将是广大群 I. Preface Our country has more than 40 years of history in bicycle production. Before the liberation, there were only three factories in Shanghai, Shenyang and Tianjin, with a single variety. After the liberation of the bicycle industry has been by leaps and bounds in the development of 1983 total output is expected to reach 24 million, more than 150 sentinel plants, a wide variety. According to the “6th Five-Year Plan”, the output in 1985 will reach 33 million. At present, China’s bicycle production has ranked first in the world. Due to the large population and weak industrial base in our country, bicycles will remain a large group for quite a long period of time