Aerospace aircraft, to adapt to high temperature, ultra-low temperature, high vacuum, high stress, strong corrosion and other conditions, firstly rely on optimized structural design, secondly rely on the excellent characteristics and functions of materials, high performance fluorine-containing plastics (FEP, PFA) because of its excellent charge insulation, high temperature resistance, flame retardant, radiation resistance and other excellent performance and stability, It can effectively prevent the failure and accident caused by electrical insulation and cable insulation materials in the harsh operating environment of aviation, so it plays a very important role in aerospace cables. The economic benefit of aerospace is nearly $100,000 per 1KG reduction, which is bound to be "keke Keke". Under the excellent performance characteristics of high-performance fluorine-containing plastics (FEP, PFA), When replacing high-density metal materials in satellite spacecraft, the weight can be reduced by 85% to ensure and improve economic benefits and flight speed.