Many of my friends complained about the poor quality of the trolley case after using it for a long time. In fact, otherwise, it is not the damage caused by the poor quality of the trolley case. If you do not know how to maintain the trolley case, it is also a major cause of damage.1.When using the trolley box, pay attention to prevent high temperature and strong acid and alkali environment, and the high pressure environment will also make your trolley box deform.2. Avoid scratches by sharp objects such as knives. No matter how hard a trolley case is, it cannot compete with knives.3. You can use cold water when cleaning, but please don't iron it, it will scald the skin.4. The use of the trolley case should avoid being in a humid environment for a long time, which will make the trolley case lose its original toughness.5. The trolley case uses a rag to clean the metal fittings, which can effectively prevent fading.6. Try not to let the trolley case walk on some uneven roads, so the loss of your trolley case wheels is considerable.7. When pulling your trolley case, pay attention to the slight force, not too much, so that it can be more smooth.