There is a world somewhere between reality and fiction. Although ignored by many, it is very real and so are those living in it. This forum is about the natural world. Here, wild animals will be heard and respected. The forum offers a glimpse into an unknown world as well as a room with a view on the present and the future. Anyone able to speak on behalf of those living in the emerald forest and the deep blue sea is invited to join.
China had a LOT of very big sauropods overall (some of which were previously mentioned but this is an overview post), with several reaching the size range of, and even exceeding, Argentinosaurus!
Here are all the 50+ tonne Chinese sauropods, biggest to smallest.
Mamenchisaurus sinocanadorum - 35 meters, 75 tonnes
Huanghetitan - 30 meters, ~73.3 tonnes
Yunmenlong - 30 meters, ~71 tonnes based on relatives
Fusuisaurus - 30 meters, 70 tonnes
Ruyangosaurus - 31 meters, 60 tonnes, still growing
Xinjiangtitan - 30-32 meters, ~47.2-57.3 tonnes based on relatives
Hudiesaurus - at least 30 meters and 50 tonnes based on relatives, possibly more
Chuanjiesaurus - 30 meters and 50 tonnes
BONUS: 'Xinghesaurus', an informally named titanosaur mounted in Tokyo for a 2009 dinosaur expo. This is to be taken with a grain of salt as the animal was measured using long distance pixels and has no guaranteed measurements until it is formally described and named, but Paleo King (here: paleoking.blogspot.com) was able to estimate ~27 meters for it, and scaling up from relatives gets almost 96 tonnes!