What is the national standard security door filling

The filling material used in Panpan security door is high-quality aluminum silicate rock wool, and Panpan security door is a national first-line brand, and the quality is trustworthy.

All security doors have several kinds of filling, honeycomb panels, rock wool, foaming, these three prices are about the same, it depends on what is suitable for each place, what manufacturers are used to. The high price point is aluminum foil.

Stainless steel is the abbreviation of stainless acid-resistant steel, and the steel grade that is resistant to weak corrosive media such as air, steam, and water or has stainless steel is called stainless steel; The type of steel that is resistant to chemical corrosion (chemical corrosion of acid, alkali, salt, etc.) is called acid-resistant steel. Due to the difference in chemical composition between the two, their corrosion resistance is different, ordinary stainless steel is generally not resistant to chemical corrosion, while acid-resistant steel is generally stainless steel.

Which door does it depend on? There are filled aviation aluminum foil, rock wool, honeycomb paper, and so on.

Generally, ordinary anti-theft doors are filled with honeycomb paper, and some high-end ones are filled with Lv honeycomb, and if the fire door is fireproof, perlite slabs or foam are used.