1. Pay attention to the welding place: Pay attention to the welding place to be smooth and free of voids, and the coating should look uniform and soft.
2. Pay attention to the thickness of the steel pipe: the thickness of the steel pipe is about 1.2 mm, preferably without impurities.
3. Pay attention to the degree of firmness: depending on the overall quality of the frame, you can use both hands to shake the product back and forth, left and right, and shake the product firmly, indicating that the frame is good
Fourth, look at the weight: the same style, heavier, it means that the steel pipe material is relatively thick and does not cut corners.
V. Look at the materials: One thing to note is that in order to achieve a certain weight, some products have some cut waste or small sections of pipe stuffed into the steel pipe to achieve the purpose of weight gain. You need to pay more attention to it.
Sixth, look at the process: the surface of the steel pipe treated with [plastic spraying process] has high hardness, more wear resistance and more luster. However, if the [baking paint] process is used, the surface of the steel pipe is more prone to scratches, which leads to easy oxidation and rust, and there is no luster. If you still have difficulty in imagining the spray molding process, then the surface treatment of the advanced anti-theft doors you know will definitely use the spray molding process. So when you buy, you can buy it according to your needs.
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