1. When many manufacturers manufacture aluminum equipment, in order to reduce the cost of industrial aluminum profiles, the composition of pure aluminum is reduced, and a lot of discarded aluminum or other impurities are added. This poses a great threat to the building.
2. Generally good industrial aluminum will take a lot of time when it is manufactured. Inferior industrial aluminum, the sealing time is reduced, and the chemical reagents are also lost, so that the cost of the product is also reduced, so the inferior products are not so good in corrosion resistance.
3. There are many manufacturers of aluminum profile equipment, many of which are unqualified manufacturers, and the insufficient thickness of the oxide film in the manufacturing process has become a problem often encountered in industrial aluminum equipment, because the surface of the aluminum profile must be There is an oxide film to protect the aluminum profiles from corrosion, and those who want to save costs are likely to cut corners on this.
