China launched a Long March-12 carrier rocket on Monday in the southern island province of Hainan, sending a group of internet satellites into space.

The rocket lifted off at 15:48 from the Hainan commercial spacecraft launch site. The payloads, the 19th group of low-orbit internet satellites carrying multiple core technologies, entered into preset orbit successfully.

The satellite group launched on Monday was developed by GalaxySpace, which is a commercial firm based in Beijing and one of several Chinese aerospace firms to contribute to the construction of Starlink-style satellite networks over recent years. It was the second time the company has undertaken such space infrastructure development.

"We have achieved a fully digitalized workflow for the first time. By targeting the specific needs of mass production, we have gone through automated testing, intelligent assembly and inspection, and optimized launch site processes, which significantly improved overall efficiency," said Cheng Ming, head of the GalaxySpace's smart satellite factory.

The Long March-12 rocket used in this mission is China's first 4-meter single-core launch vehicle. It has a payload capacity of no less than 12 tons to low-Earth orbit and no less than 6 tons to a 700-kilometer sun-synchronous orbit. The rocket can support both single and multiple satellite launches to different orbits.