BEIJING, Oct. 31 (China Space News) -- China Rocket Co Ltd released its commercial carrier rockets research and development plan in Beijing on October 19.

The new series, classified into solid-propellant and liquid-propellant carrier rockets, will satisfy the improving commercial payload in-orbit demands.

SD-1 made its maiden flight in August this year. The SD series is designed to provide reliable, convenient and economic launching services for commercial satellite users in the constellation network and payload tests.

The medium-sized  liquid-propellant carrier rocket will be reusable for the launching of medium and large satellites and large-scale constellation network. It is also expected to make its first flight test in 2021.