1. After chemical treatment of iron phosphate peritoneum on the inside and outside of the general steel drum, the inner surface is free of oily impurities, with high cleanliness and enhanced rust resistance; the adhesion of the outer coating is greatly improved.

2. The standard three-layer seven-layer hemming process is adopted, so that the steel drum has excellent impact resistance and air tightness.

3. The introduction of the W-stretching process improves the lateral impact resistance of the steel drum, thereby reducing the thickness of the steel drum and reducing costs for customers.

4. This type of steel drum is suitable for low-corrosive chemical raw materials, lubricants, food additives, coatings and resins.