Which is better, CZ Zhuzhou or Qingdao Sifang?

CRRC Zhuzhou is very awesome.

1. As far as technology is concerned, CRRC Zhuji has strong technical strength and R&D capability in the field of high-speed trains and subway vehicles, and has a number of independent intellectual property rights and patented technologies. Qingdao Sifang also has good technical strength and R&D capability in urban rail transit system and high-speed trains.

2. As far as products are concerned, CRRC Zhuji mainly produces urban rail transit vehicles, high-speed trains and subway vehicles, while Qingdao Sifang mainly produces rail transit vehicles and urban rail transit systems.