http://en.wikipedia.org/wiki/Long_March_(rocket_family)#Specifications_of_Long_March_rocket_family http://en.wikipedia.org/wiki/Long_March_(rocket_family)#Spec.

http://en.wikipedia.org/wiki/Long_March_(rocket_family)#Specifications_of_Long_March_rocket_family http://en.wikipedia.org/wiki/Long_March_(rocket_family)#Spec... 12 tons demonstrated and 25 tons in development.