对于拼装接头、安装接头及油漆涂料损坏区域，该区域首先用手工打磨除锈并清

For assembled joints, installation joints, and damaged areas of paint and paint, the area is first hand-polished to remove rust and cleaned, and then the primer and intermediate paint are sprayed separately as required. The total thickness of the paint film needs to meet the design requirements.

For the assembly of joints, mounting joints and paint damage dispensing areas, the area first by hand-polished rust and clean, and then according to the requirements of the spray primer, intermediate paint, the total thickness of the paint film needs to meet the design requirements.

For the damaged areas of assembly joint, installation joint and paint coating, the rust shall be removed and cleaned by hand first, and then the primer and intermediate paint shall be sprayed respectively according to the requirements, and the total thickness of the paint film shall meet the design requirements.<br>