by78
General
Models of Long March 12 and reusable Long March 12B launch vehicles, the latter of which is under active development. The second image shows a slide presented by CASC on a certain new reusable rocket in the 4-meter-diameter class. I think it's referring to the Long March 12B. If so, 12B is a bit thicker than 12, which has a diameter of 3.8m
The reusable Long March 12A project is proceeding along. A 75-km VTVL test will be conducted next month. The first two images show the launchpad being prepped for the test.