The Navy's new destroyer, a domestically designed and produced vessel, was launched at the Jiangnan Shipyard (Group), Shanghai.
The vessel is the first of China's new generation of destroyers. It is equipped with new air defence, anti-missile, anti-ship and anti-submarine weapons, state-run Xinhua news agency reported.
The vessel marks a milestone in improving the nation's Navy armament system and building a strong and modern Navy.
According to the plan, tests will be carried on the vessel, including equipment operation, berthing and sailing.
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The first aircraft carrier Liaoning has left with a flotilla of Chinese naval ships on June 25 on "routine training mission" from Qingdao in east China.
The naval formation includes destroyers Jinan and Yinchuan, frigate Yantai and a squadron of J-15 fighter jets and helicopters, a Chinese defence ministry statement said.
This is the first exercise being carried out by Liaoning, a refurbished aircraft carrier, built from the hull of a Soviet ship bought from Ukraine after China had launched a home-made carrier in April this year.
The new aircraft carrier was expected to be operational by 2019.
(Reopens FGN25)
Meanwhile, China has also unveiled a new domestically built marine geological survey vessel in south China's Guangdong Province.
Haiyang Dizhi-10 is 75.8 meters long and 15.4 meters wide with a displacement of 3,400 tonnes. The vessel has a range of 8,000 nautical miles.
China now has six marine geological research vessels in service, with plans to put Haiyang Dizhi-10, Haiyang Dizhi-8 and Haiyang Dizhi-9 into active service by the end of the year.