Low-carbon repair is commonly known as' external repair'. The scope of low-carbon remediation is actually very wide. As long as it is something that can't be repaired in 4S shops and repair shops, it should be called low-carbon repair if it is repaired with proprietary technology or equipment. Bottom carbon repair can indeed reduce the maintenance cost of the whole vehicle, avoid waste and reduce the replacement of spare parts, so it is called bottom carbon repair. Usually, insurance companies have cooperative relations with external repair units. As mentioned above, the bottom carbon repair is to reduce costs and focus on repair, which is also a cooperative unit that insurance companies are keen on.