In recent years, with the level of the industry, the industrial aluminum field is becoming more and more popular. Market sales also show diversification, price gap. Unidentified customers can only select industrial aluminum marketing companies from the lowest price. This drives some persistent quality-first enterprises from lower raw materials and production costs to ensure market sales, and sales market disruptions are increasingly evident.        

        1. Air oxide film thickness - - insufficient thickness, aluminum surface is very easy to rust, erosion. The national industry standard thickness of anodized film for building and industrial aluminum should not be less than 10um (μm). Some properties name, detailed address, production license, qualification industrial aluminum, plastic film thickness is 2 to 4um, some or no film. According to the doctor, every reduction of 1um air oxide film thickness, can reduce the output power consumption of one ton of composition 150 diversification. 2 kind of chemical composition, mixed with a lot of waste aluminum, industrial aluminum profile can greatly reduce the cost, but will cause industrial aluminum chemical composition is not pass, more serious serious harm to safety engineering professional.