At present, the most popular children's furniture in the market is cartoon-like, mock-up style furniture. Most parents will pay attention to whether the formaldehyde used in the artificial board exceeds the standard, but rarely pay attention to the environmental protection problems of panel paint. In fact, under normal circumstances, the brighter the furniture paint, the higher the lead content. Therefore, the color of children's furniture should not be too bright.
Tests show that orange paint has the highest lead content, and the others are yellow, green, and brown. The survey showed that the concentration of lead in the air was 16 times that at 1.5 meters from the ground, and the height of the children was just within this range. Infants and young children often touch furniture with their hands, and can easily ingest a large amount of lead when sucking their fingers, and the absorption rate of lead by infants and young children themselves is very high, about 5 times that of adults. When lead enters the body, it can damage the nervous system, digestive system, and blood system. Lead poisoning can also seriously damage the liver. What is more serious is that the lead that enters the human body is difficult to be discharged.
At present, there is almost no detection of heavy metal content in furniture paints on the market, and parents must be cautious when choosing children's furniture.
Stainless steel nuts are components that tightly connect mechanical equipment, and can only be connected by screws on the inside, nuts and screws of the same specification. For example, M4-0.7 nuts can only be combined with M4-0.7 screws. (In the nut, M4 means the inner diameter of the nut is about 4mm, and 0.7 means the distance between the two threads is 0.7mm. );
The same is true for products made in the United States. For example, a 1/4-20 nut can only be combined with a 1/4-20 screw. (A 1/4 finger nut has an inner diameter of about 0.25" and 20 fingers have 20 teeth per inch. Features of Stainless Steel Round Nuts
Stainless steel nuts have the advantages of not easy to rust, anti-corrosion, thermal conductivity, and strong electrical conductivity. Another major use is injection, where it is embedded in plastic parts after heating, or injected directly from a mold.
Although many people may have used this stainless steel round nut, they do not really realize the importance and advantages of this nut. According to the introduction of the article, you should be able to understand what kind of characteristics this nut has. When a nut needs to be used in the future, it should be considered that such a nut plays a more important role.
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