Why the market price of roof racks varies greatly, many people do not understand the reason, especially the design and appearance looks similar or even exactly the same product, why the price difference is so big?

The so-called a penny for a penny, the price is relatively low product material is how it can be imagined. Why in the end the market price difference is so big? It is mainly because of the disparity between the materials used in the product.

First of all, the main support part of the aluminum alloy and high-strength plastic two materials. Aluminum alloy material has the advantages of high strength, light weight, so the most widely used, but the aluminum alloy contains trace elements are not the same, then the strength and hardness of the material manufactured is also different; high strength plastic material is easy to aging.

High-strength plastic materials are more prone to aging, the reason is that plastic is easy to thermal expansion and contraction, assembly precision is poor; now some well-known brands generally use aluminum alloy, manganese steel and other materials, in terms of strength and hardness and anti-aging more than enhance a level.

After the luggage rack is installed, from whether it is easy to deformation and other aspects to determine the reasonableness of its mechanical structure; this is to look at the thickness of its materials, see whether the connection is connected to the joints are connected tightly, the luggage rack is installed, from whether it is easy to deformation and other aspects to determine the reasonableness of its mechanical structure.

How to identify the material of the roof rack?

Material is the core of quality, we can identify through simple observation, see whether the surface gloss is consistent, whether uniform, there is no bumps and cracks; to see the thickness of the material, see whether the joints are connected tightly.

The above is the roof rack quality identification of common methods, I hope to help you choose the roof rack can help!

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