First: Check the appearance, model, capacity, external label, etc. of the blast furnace freezer. It can be seen whether the surface has flaws, bruises, uneven paint and color, whether it is obviously uneven, whether the door is abnormal, etc.
Second: understand from two aspects: promotional materials and brand characteristics. The promotional materials are relatively superficial, the content is relatively simple, and the validity period is short. The news published on the official website is generally the latest synchronous update news. You can confirm some official news online, or you can conduct detailed consultations.
Third: Ask about the compressor brand and origin. The compressor is the heart of the blast furnace freezer and is directly related to the cooling performance, noise, life and energy consumption of the blast furnace freezer.
Fourth: personally experience the use of the product, after-sales service, and market reputation. Whether the pinch door container is firm and even; because the screws may rust, please pull the door seal to ensure that there are screws. Compare the width and thickness of the door seal again to know if there is an airbag. Because this will affect the sealing performance of the blast furnace freezer.
Fifth: Close the door of the blast furnace freezer. The sound of closing doors of high-quality blast furnace refrigerators is usually heavier.
