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液压挖掘机作为一种重要的通用型工程机械,其销售量、保有量、发展速度始终处于整个工程机械行业的前列,其配套体系也越来越成为一个庞大的产业。电器系
As an important general-purpose construction machinery, hydraulic excavator has always been at the forefront of the entire construction machinery industry in terms of sales, ownership and growth rate. Its supporting system has also become a huge industry. Department of electrical appliances