In the production process of iron barrels, manufacturers must strictly ensure the quality of the barrels by adhering to the following aspects: 1. Before packaging, the dimensions of the iron barrels must be carefully verified and the materials should be cut strictly according to the drawings and process specifications. 2. When bending the steel plates, a test cut must be performed, and the machine pressure must be calculated, determining which cuts to make first to avoid waste products. 3. The iron barrels must be welded in accordance with the specified locations in the drawings and process specifications, and the welding must be carried out according to the welding process specifications to prevent deformation. 4. After welding, when the iron barrels require grinding, polishing, or brushing, it is essential to maintain the same plane as the original metal material, and special care must be taken to avoid overheating the metal during polishing and brushing. Once the processing of the iron barrels is completed and accepted by the inspection personnel, they must be packaged to prevent scratches and dents on the surface.