C80 coal dedicated wagon is the Chinese open wagon with the largest loading capacity and specially used for coal transportation in Datong-Qinhuangdao Railway.
It's the first type wagon which made by full aluminum with rivets of China. It has double-tub structure in bottom of the bodywork in order to expanded loading space. It is equipped with 16 rotatable coupler and spring air pipes, can adapt to coal unloading by rotary railcar dumper in Qinhuangdao coal harbor.
Unfortunately, due to it's too expensive, now C80 is being gradually replaced by all-steel C80B. But it has some number of groundbreaking attempt, will provide important guidance for advancing China Railway.