ZPMC-OTL Marine Contractor, which will market the vessel, said the launch happened on 18 June.
The company claims the Zhen Hua 33 is the "most technologically advanced and highest capacity" self-propelled float-over vessel in the world.
It boasts a free deck area of 185 metres by 43 metres, making it the longest vessel in its class.
"The fully removable aft casings make the vessel an ideal choice for transportation of heavy modules and spars requiring a stern loadout," ZPMC said.
The
