Gold is so malleable that one gram of gold can be drawn into a 160-meter-long wire, or crushed into a 9-square-meter foil that is only 1/500,000 of a centimeter thick. This gold foil looks almost transparent, but prevents the passage of ultraviolet light.
Gold foil is widely used in protective masks for astronauts and sealed capsules on spaceships, and it strongly reflects infrared rays and is used in infrared drying equipment and infrared detectors for modern military equipment.
As the saying goes, real gold is not afraid of fire. Gold can withstand very high temperatures, its melting point of 1,064.43 degrees Celsius. The chemical properties of gold are very inactive, ordinary acids and alkalis have no effect on it.
Aircraft, satellites and aerospace equipment in many control instruments and electrical switches of the contacts, must be used with good conductivity, high melting point and will not be oxidized gold or its alloys to manufacture. General selection of gold and its alloys. Gold and its alloys of good chemical stability, can also be used to manufacture man-made fibers nozzle and aerospace vehicles in the battery filter membrane, as well as aerospace vehicles in the battery filter membrane. Gold and its alloys made of memory alloys, superconducting materials and various parts. In addition, gold and its alloys made of memory alloys, superconducting materials and a variety of parts, but also widely used in medical equipment, electronics industry, computers, robotics, aerospace, military and some other new science and technology fields.