When traveling or traveling on business, a beautiful and easy-to-use travel trolley seems to be essential. A suitable trolley case can greatly reduce our burden when traveling and avoid our embarrassed appearance like a Christmas tree.   Therefore, in the selection process, many people will have the following questions: Q: Is it better to choose PC or ABS for the material of the trolley case? A: It is better to choose PC or ABS as the material of the trolley case.   The key is to understand the characteristics of the two materials before you can compare and choose.   In this regard, we have compiled some relevant knowledge, let's take a look!   PC v.s.ABS PC material PC material is the abbreviation of polycarbonate, which has excellent electrical insulation, elongation, dimensional stability and chemical resistance, high strength and good compressive performance. PC material is non-toxic and tasteless, which is an environmentally friendly material and can be colored. PC material has good texture, strong rigidity, smooth and beautiful appearance, and also has the characteristics of impact resistance, waterproof and fashion. Luggage made of PC material is lighter, lighter and tougher. When traveling for a long time and carrying a lot of luggage, the case will be lighter than luggage made of other materials. However, the impact resistance of the PC material suitcase is not as good as that of the ABS material, it is easy to crack, the fatigue strength is low, and the price is higher than that of the ABS material.   ABS material ABS material is composed of terpolymers of three monomers, namely acrylonitrile, butadiene, and styrene. The content of the three monomers is changed to make various resins. Acrylonitrile has the effect of heat resistance and corrosion resistance, butadiene has high elasticity and flexibility, and styrene has good thermoplasticity. The suitcase is made of ABS material, which has good impact resistance, flexibility, rigidity, and is not easily deformed by gravity. It can well protect the box body and protect the items in the box from being damaged, and the price of the abs trolley case will be higher than that of the price. The price of PC trolley case is low. However, the texture and rigidity of the ABS trolley case are not as good as that of the PC, and the case is prone to scratches. Moreover, the weight of ABS is heavier than that of the PC case, and it is not as light as the PC case.   In addition, other accessories are also important considerations for us.   In addition to the box material, the universal wheels, zippers, and pull rods look inconspicuous, but they also have a great impact on the user experience. Take the universal wheel as an example, the earliest one was a one-wheeled universal wheel, which had four wheels, but they were all similar to the one-wheel of a freight cart, and the axles were directly exposed, which was not beautiful.   Most of the high-end suitcases now use two-wheeled swivel wheels. One caster has two wheels, and four casters have eight wheels in total. Because it is very similar to the wheels of the landing gear of an airplane, this kind of swivel wheel is also called aircraft eight. wheel. High-end aircraft eight-wheels use ball bearings in both the axles and shafts to ensure that the wheels roll and turn "silkly lubricated".   Conclusion Suitcases made of different materials have their own advantages and disadvantages. PC suitcases will be lighter, look good, waterproof, drop-proof and compression-resistant, and can withstand violent transportation at the airport, but the price will be slightly higher.   The ABS material suitcase has high toughness and can well protect the box and the items in the box, but the lightness and texture are not as good as the PC material. Generally speaking, these two kinds of trolley cases have their own advantages and disadvantages. Which one is better depends on the user's specific performance requirements.