Original surface: NO.1 is the surface to be heat treated and pickled after hot rolling. Generally used for cold-rolled materials, industrial tanks, chemical industrial equipment, etc., thicker from 2.0mm-8.0mm.
Blunt surface: NO.2D is heat-treated and pickled after cold rolling. Its material is soft and the surface is silver-white luster. It is used for deep drawing processing, such as automobile parts and water pipes.
Matte: NO.2B is heat-treated, pickled after cold rolling, and then finished with fine rolling to make the surface light. Because the surface is smooth, it is easy to re-grind, making the surface brighter and widely used, such as tableware and building materials. After surface treatment with improved mechanical properties, almost all uses are met.
Fine sand: NO.4 is a product ground with a grinding belt of size 150-180. It has better gloss, has discontinuous rough lines, and is thinner than NO.3. Used in baths, interior and exterior decoration materials, electrical products, kitchen equipment and food equipment.