Xugong, Liugong, Zhonglian, Sany and Tai 'an Wuyue are all main engine plants, and the chassis they produce are all self-produced and sold, and they are basically not sold to the outside world.

Dongfeng Suizhou Special Vehicle Factory and FAW Changchun Special Vehicle Factory produce truck crane chassis, which are mainly sold externally. These two manufacturers mainly produce crane chassis below 50 tons, and those above 50 tons are not produced.