In national major projects including manned spaceflights, lunar exploration,the BeiDou navigation satellite system and deep space exploration,with professional and technical advantages, CASIC provides plenty of stand-alone products, components, and basic parts, represented by space rendezvous and docking microwave measurement radar, urine treatment subsystem,Y shutdown sensorspace-borne rubidium clock, near space airship, and phased array sensor to support the "Shenzhou" space flight, "Chang e moon landing, "BeiDou" networking, high resolution earth observation, Mars exploration and construction of China's space station, greatly guaranteeing the success of all previous major missions for Chinas space exploration.