Shandong Zhongji Construction Machinery Co.,Ltd.(Lai zhou Guangyuan Machinery Co.,Ltd.)is a domestic key enterprise which is engaged in manufacturing agricultural machinery?construction machinery?engineering machinery?It has developed and manufactured above-mentioned machinery for more than 20 years, and belongs to provincial advanced enterprise, is one of Yantai Top 100 Enterprises and is special Credit Enterprise. In addition, its ?Guangyuan? brand agricultural bulldozing device has been ...