Irradiation can make polymer materials to achieve cross-linking, polymerisation, curing, degradation and other physical and chemical reactions, can greatly improve the physical and chemical properties of materials, irradiation modified wire and cable, heat-shrinkable products, tyres, polyolefin foam, polymer components and other products are widely used in aviation, aerospace, navigation, automotive, electronics, nuclear power, oil extraction, communications, environmental protection coatings, reuse of rubber and some special industries. In addition, irradiation can change the colour of jewellery such as jade, gemstones, crystals and pearls, which can be coloured by irradiation for the purpose of improving the quality of jewellery.