日本近年来由于施工机械化的发展,工程机械拥有量日益增多,保养维修的工作量也随之而增大。目前已有一百几十家修理厂从事工程机械的修理工作。日本建设机械化协会、保养户会、修理部会,从1956年起就开始对工程机械的维修工时标准、材料费用及修理厂人员设备规模等进 In recent years, due to the development of mechanization of construction, the number of construction machinery in Japan has increased, and the workload of maintenance and repair has also increased. At present, there are one hundred and dozen repair factories engaged in the repair of construction machinery. The Japan Construction Mechanization Association, the Maintenance Association, and the Repairs Department have been involved in the maintenance workmanship standards, material costs, and the scale of the repair facility personnel equipment of construction machinery since 1956.