As a necessity for every family, refrigerators are generally used for decades. Therefore, when we are shopping, we must have a comprehensive understanding of the refrigerator, choose a refrigerator that suits you, so that you can buy happy, use the rest assured. Here are four points to note when purchasing a refrigerator. The first is the brand, which is the primary element we should pay attention to when buying refrigerators. Well-known big brands, especially well-known brands that specialize in manufacturing refrigerators, have withstood the long-term test of the market in the long-term development, in product quality and after-sales. The service is more secure. The second is quality. When buying a refrigerator, carefully observe whether the refrigerator's cabinet is flat, with or without depression and deformation. In addition, pay attention to the color of the shape, whether the paint film has peeling and uneven appearance. Connect the power supply and adjust the temperature. It should be adjusted to the second gear, let the automatic controller stop and self-open several times, check whether the temperature control device is reliable and effective, and then check whether the compressor is running normally and the noise level. Then turn the adjustment knob to the “non-stop†position. After half an hour, the frost water will appear in the evaporator. Check whether the four walls of the evaporator are even and the heat dissipation is the same. Finally, check whether the door is tight and flexible. The third is the volume. The volume of the refrigerator should be selected according to the actual needs of the family. Generally speaking, the volume of the refrigerator required by each person in the family is 60-70 liters, so the refrigerator with an effective volume of 180-300 liters has completely satisfied the ordinary family. Demand. The fourth is refrigeration. The refrigeration methods of refrigerators mainly include "direct cooling" and "air cooling". Under normal circumstances, the "direct cooling" refrigerator has low power consumption and good fresh-keeping effect. The disadvantage is that the refrigeration tube of the freezer compartment is prone to frost formation. Air-cooled refrigerators are characterized by a high grade of refrigerators but higher power consumption because of the fan and defrosting heaters in the refrigeration system. However, the food is easy to dry, it is not good for preservation, and the noise is also very large. At present, many medium and high-end refrigerators adopt the method of “mixed coolingâ€. Wholesale Ptfe Gland Packing for Sealing,Ptfe Gland Packing,Ptfe Packing Tiangong PTFE & Plastic Material Development Co., Ltd. , http://www.sxptferod.com