In September 1992, the Chinese government decided to implement the manned space program and established a three-step development strategy. The first step is to launch a manned spacecraft, establish a preliminary supporting experimental manned spacecraft project, and conduct space application experiments. The second step is to break through the rendezvous and docking technology between manned spacecraft and space vehicles after the successful launch of the first manned spacecraft, and use manned spacecraft technology to modify and launch a space laboratory to solve space application problems with a certain scale and short-term care. The third step is to build a manned space station to solve the problem of large-scale and long-term manned space applications. The Shenba Tianjin Launch Base adopts Baosteel galvanized color coated steel plates, with a color of Ice Moon Blue and a coating type of high weather resistance. The brand is TDC51D, and the galvanizing amount is 180 grams per square meter.
