Modern excavators are a little more expensive than Liugong, but the quality is not worse than Liugong. It seems that Liugong's hydraulic parts are all made in Kawasaki, Japan, but the hydraulic parts with the highest oil pressure in Korea are all used in modern times, and Liugong's accessories are also a little lower than modern times. All the modern ones we used to use have been replaced by Liugong's. Now there are five Liugong excavators in our mine, and the quality is not bad. This is just my own idea, for reference only.
/tlovek/
I also learned about Liugong's configuration from this website.