The closed iron barrel is a kind of iron barrel, and the most important thing in its production is the selection of raw materials and the processing technology. The selection of raw materials is more convenient and simple, but for the processing technology, it requires the superb craftsmanship of the technicians. The most important part of the manufacturing process is the polishing process.

In the polishing process of closed iron barrels, we need to pay attention to two stages, one is grinding, and the other is light. When grinding, it is mainly to remove the irregular solder joints of the iron barrel, and the light needs to be treated by a special process to make it have a mirror effect. We need to pay attention to the maintenance of the closed iron buckets we buy. The trick is: first, we need to sprinkle detergent or decontamination powder on a soft cloth, stain it with a little water, then wipe it, then wash it with clean water, and put it outdoors. Dry naturally, do not put the stainless steel drum in a damp place, and it will not be exposed to the air, and the drum will be corroded due to moisture.

After the above explanation, we have a certain understanding of the processing technology and maintenance methods of closed iron drums, and I believe that we will be more handy in future applications.