A look at the use of materials, quality of aluminum used in aluminum skid plate, thickness, strength and oxidation film, should conform to the relevant standards, the wall thickness should be 1.2 mm or more, tensile strength of 157 Newtons per square millimeter , yield strength to 108 Newton per square millimeter, the oxide film thickness of 10 microns. If you can not reach the above criteria, is inferior aluminum windows and doors, can not be used.
Second look processing, high-quality aluminum alloy skid plate, fine processing, mounting stress, good sealing performance, switch freely. Poor quality aluminum windows and doors, aluminum blind selection series and specifications, processing shoddy, to replace the sawing and milling machining is not required for installation, sealing performance is poor, the switch does not freely, not only leaks and the emergence of glass burst leakage phenomenon, and the case to strong winds and external, easy to pull off some or glass blowing or touching down, destroy property wounding.
Third, look at the price, under normal circumstances, high-quality aluminum alloy skid plate due to high production costs, cheaper than inferior aluminum skid plate to be about 30% higher. Currently self-employed processing aluminum skid plate more, they do not know the structural characteristics of Aluminum Alloys skid plate and its properties. In order to reduce the cost of cutting corners, shoddy products hidden larger, generally should not be used. The best selection of regular aluminum skid plate manufacturer of the product.
没有评论:
发表评论