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Anonymous users2024-01-24For anti-theft doors, the best filling should be polyurethane foam, with good thermal insulation and sound insulation, and the strength of the door leaf.
The most such fillings are all big brands, such as Panpan, Zhucheng, and Meixin.
Zhucheng, China's famous brand, China's well-known trademark, national inspection-free products.
The fillers of the anti-theft door are: honeycomb paper (general) - general anti-theft door, engineering door. >>>More
The better ones are filled with polyurethane foam, some are made of rock wool, and some are made of straw and cardboard.
Asked about the security door filler which is good, I personally think the best is that the rock wool filler is the best. A general term for mineral aggregates that are naturally fibrous or can be split into fibrous forms. According to the chemical composition and crystal structure of the mineral, it can be divided into serpentine asbestos, amphibole asbestos, brucite asbestos, porphyllite asbestos, sepiolite asbestos, phyllophyllite asbestos, etc. >>>More
Nowadays, many of the fillers of the security door are honeycomb paper, and the quality of the security door has nothing to do with what the filling inside the security door is. The padding only plays the role of cushioning, sound insulation, etc. So don't care too much about what the filling of the security door is, but care about whether the steel plate of the security door is up to standard. >>>More
。High-grade honeycomb paper, imported poly-burning fat foam, which is the most environmentally friendly in the country.