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Anonymous users2024-01-23First make sure that what you buy is the same as the sales of the filler door model level, and then go to confirm with the sales and record the sound, like the sales order will not be remarked with the internal filler, keep the evidence First negotiate to ask for a replacement and return or compensation for the price difference, you can also complain to the industrial and commercial office.
Grade A is filled with aluminum foil, and Grade B also has a little aluminum foil filling.
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Anonymous users2024-01-22This deceives the customer, it is better to tell you what is filled when you buy it.
Most of them are, because the security door needs to be filled with cement to be firm, and except for a very small number of intelligent or advanced security doors, the general home improvement security door is filled with cement.
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.
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
Which door do you want to see Huajue? Some are aviation aluminum foil, some are rock wool, and some are honeycomb paper.
Of course, it is good for rock wool, it has a good flame retardant function, it is a good conductor for hot non-dug dug, of course, it is also warm when the branches are burned, there are many brands, it depends on your hunger preferences to choose.