This standard specifies the terms and definitions for remanufacturing of remanufactured cantilever boring machines (hereinafter referred to as remanufactured boring machines), general requirements for remanufacturing, remanufacturing processes, technical requirements for remanufacturing of main systems and components, safety and environmental protection requirements, and inspection methods. , logo, accompanying documents, transportation and storage. This standard is applicable to the remanufacturing design and production of cantilever boring machines operating in environments containing gas, coal dust or other explosive gases in the Hefei remanufacturing agglomeration area. Similar boring machines operating in other engineering tunnel (laneway) environments can also be used with reference. .