... development of “high-tech, precise, cutting-edge, specialized and special” bearing products, which are applied to the mainframes of ... parts. The “high-tech, precise, cutting-edge, specialized and special” bearing products have been widely applied to aviation, spaceflight, ... of bearing assemblies for “Dong fang hong” series man-made satellite, manned spacecraft series from “Shenzhou 1” to “Shenzhou 7” ...