Zhonghai Emeishan is the

Zhonghai Emeishan is the biggest floating dry dock in the world, built to repair and construct very large ships and support the maritime industry of China.

It has advanced features and is highly automated, with its construction costing 580 million Yuan.
It was put together in Yangzhou, China, and though sources do not name a specific construction company involved in its construction, it involved significant local government participation, and the Mayor was present when it was launched in September 2008.
It is an example of fine Chinese engineering, as it was built in just 416 days and delivered to the Shanghai Changxing ship repair base in October 2008.
The largest floating dry dock in the world is 410 m long and 82 m wide. It has a moulded depth of 28 m, a displacement of 42,000 tonnes, and a lifting capacity of 85,000 tonnes.
It was designed to operate in sheltered waters, per international conventions and classification society regulations.
Zhonghai
Content Original Link:
" target="_blank">