Product description
1. The surface of the steel is clean and free of oil stains, and removed coating
2. Identify the drop of liquid on the surface of the steel, observe the color change, after 2-3 minutes, compare the color or the time it turns red, and confirm the stainless steel model.
MAIN INGREDIENTS: Metal reducing agent, indicator, inorganic acid, water, etc.
PRODUCTION DATE: See Packaging