In daily life, when we are buying and buying a home, we don't necessarily understand what we buy. Therefore, we need to know some common sense of shopping. Here we will introduce how to distinguish the quality of the mahogany door. 1. To check if the selected mahogany door is enough, try to move the door and it is easy to identify it. 2. Detect the moisture content of the mahogany door. When you gently touch the heart panel and the seam part of the door panel with your fingers or palms, if the feeling is smooth and smooth, it is proved that the moisture content of the wood for the door has reached the standard; if there is slight cracking Or the phenomenon of bursting proves that the moisture content of the wood at the time of making the door is too high, and the quality of the mahogany door is not good. 3, to detect the quality of the wood itself, is to use the nail in the direction perpendicular to the wood texture, carefully observe and experience the diameter of the wood tube hole. Generally speaking, the degree of wood blockage is small when the stroke is made, and the quality of the wood with a small diameter of the nozzle is also good; the degree of the handle is large, the diameter of the tube hole is large, the wood itself is also rough, and the quality of the wood is naturally poor. 4. Check the elastic structure of the mahogany door. The method is to lift the side of the mahogany door and gently let it fall to the ground. The sound of the tightly structured door is simple and powerful. 5. Check the proportion of materials used in mahogany doors. The usual test method is to turn over the small doors such as tables and chairs and invert them to see if the wood used in the interior and concealed parts is exactly the same as the wood used in the main structure. In general, the heartwood used in the full mahogany door is orange-red, purple-red-brown or black. The "partial mahogany door" has a sapwood and the sapwood is yellow or taupe.
Pressure sensor usually consists of a pressure sensor and a signal processing unit for measuring the pressure of liquids and gases.
According to different test pressure types, pressure sensors can be divided into gauge pressure sensors, differential pressure sensors and absolute pressure sensors. According to the working principle, it can be divided into Ceramic Pressure Sensor, diffusion silicon pressure sensor, piezoresistive pressure sensor, sapphire pressure sensor and so on.
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How to distinguish the quality of mahogany doors