小型柴油机行业的“常”字头现象早已是众所周知的故事，然而，一走进常州第三届农机展销会的展厅，我仍然不能不为“常”字头柴油机生产企业的庞大阵容感到吃惊。因为，自始至终，从常柴，到常发、常通、常内、常工……转来转去，我也没有把带着“常”字头帽子的柴油机企业究 The “constant” phenomenon in the small diesel engine industry has long been a well-known story. However, as soon as I walked into the exhibition hall of the Third Agricultural Machinery Exhibition in Changzhou, I was still struck by the huge lineup of “Chang” diesel engine manufacturers. Because, from the beginning to the end, from Changchai, to Changfa, Changtong, Changzhong, Changgong, etc... I didn’t study the diesel engine business with the “constant” cap.