The stainless steel security door is made of stainless steel. Because the anti-theft performance of the stainless steel security door is strong, durable, diverse, and beautiful, it is favored by more and more consumers. Stainless steel security doors are also often used as households. door. So, what are the things that consumers should pay attention to when buying stainless steel security doors? First, pay attention to the filler Stainless steel security door paper is a bit unbelievable. Some stainless steel security door surfaces are made of steel, but the sandwich filler is filled with paper. Originally, the country stipulated that paper can be used as a filler, but this paper needs to be honeycomb paper. But now there are some manufacturers on the market that use ordinary paper shells as fillers. Although it is possible to use honeycomb paper, it is generally used for low-end doors because it is not soundproof or insulated. The more standardized filler is a foaming agent, which can be insulated and soundproofed. The disadvantage is that the fire performance is poor, but the anti-theft can be achieved. A little better is slag wool. Second, pay attention to whether to refurbish One of the pitfalls to avoid when buying stainless steel security doors is that some small workshops will recycle old stainless steel security doors and then renovate them for sale. To check if the old door is refurbished, pay attention to the process of turnkey. Under normal circumstances, the packaging of the new stainless steel security door is intact, the installation workers are packaged in front of the customer, the key should be in the package, the key packaging should be complete, and the lock core should be installed in front of the customer. Once the lock is installed, give the key to the customer. But if the door's packaging itself is damaged, and the key is in the worker's pocket, it may be a refurbished door. Third, we must pay attention to the thickness of the sheet It is understood that the stainless steel security doors on the market are made of steel plates from the surface, but some manufacturers do their hands on the steel plates. Moreover, since the average consumer can't distinguish the quality of the steel plate, it is more insidious to make an article. One is to make a fuss about the thickness of the steel plate. According to the state regulations, the thickness of the steel plate of the stainless steel security door should reach 1 mm or more, but the thickness of the security door made by some small workshops is simply not reached. Some are as thin as the snowboard plate of the chimney, and the thin plate loses the meaning of theft prevention. With a hard thing, it opens. The second is to replace the cold rolled sheet with a hot rolled sheet. The steel plate of the security door must be a cold rolled plate. Because the cold rolled sheet has good stretchability and toughness, but it is more expensive, some manufacturers use hot rolled sheets instead of cost. A good stainless steel security door steel plate should also be galvanized or phosphatized, not just painted on the surface, so that the steel plate is not easily corroded.
PP Lunch Box is durable, non-toxic and good for environmental protection.
Double Layers Lunch Box has a big capacity to store your snacks and fruits.
Multilayer PP Lunch Box has more capacity, so more types can be accommodated.
Single Layer Lunch Box is easy to carry and can be used on various travel occasions.
Bamboo Lid can absorb ultraviolet light, antistatic, good for human health.
PP Lunch Box, Double Layers Lunch Box, Multilayer PP Lunch Box, Single Layer Lunch Box, Bamboo Lid Ningbo Auland International Co.,Ltd. , https://www.everdrinkingbottle.com